2024-03-28T10:28:42Z
http://digitalcommons.calpoly.edu/do/oai/
oai:digitalcommons.calpoly.edu:mesp-1000
2020-02-03T22:10:47Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Final Design Report: Hand-Drive Rear Wheel Drive Wheelchair Project
Neunuebel, Colin
Sorenson, Bjorn
Vandenhoek, Lazer
The project described herein is a senior design project for mechanical engineering students. This report details the design, build, and test process for the development of a wheelchair hand cycle attachment that drives the wheels of the wheelchair, rather than the wheel of the attachment. The sponsor of the project, Mr. Greg O’Kelly is interested in such a device for his own use as well as having a working prototype as a “proof of concept”, should the design be successful enough to manufacture. From the sponsor’s perspective, in addition to acquiring a product he can use, this is also an opportunity to offer real world experience to a team of engineering students through the development of a solution to an existing problem. There are six students working internationally to develop a single final product; three students in the United States attending California Polytechnic State University, and three students in Germany, attending the Hochschule München, School of Applied Sciences. From the student’s perspective, this is meant to be a capstone experience- the culmination of their engineering education, and a bridge between the academic world of theory and the professional world of actual product development. This report covers the background for the project, design development, an in-depth description of the final design, a testing plan, a project management plan, and the conclusion to date.
2009-01-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/1
https://digitalcommons.calpoly.edu/context/mesp/article/1000/viewcontent/auto_convert.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1000/filename/0/type/additional/viewcontent/Final_Report_Drawings.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Wheelchair handcrank
Engineering
oai:digitalcommons.calpoly.edu:mesp-1001
2020-02-03T22:37:29Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Callaway Golf: Variable Curved Impulse Sealer
Cook, Justin
Jones, Ben
Reynolds, Sean
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/3
https://digitalcommons.calpoly.edu/context/mesp/article/1001/viewcontent/Library_Final_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
VCIS
Varaible Curved Impulse Sealer
golf club head packaging
shrink wrap sealing
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1003
2020-02-03T22:19:04Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Boundary Layer Data System (BLDS) Heating System
Hauge, John
Hutcheson, Drew
Scott, Paul
The boundary layer data system (BLDS) is the result of a collaborative effort between Dr. Westphal, a researcher and instructor at Cal Poly, and Northrop Grumman. The BLDS is capable of measuring the boundary layer profile and characteristics of flow over aerodynamic surfaces and is intended for high altitude, high speed use. The instruments inside the BLDS malfunction at the low temperatures present when operating in flight at altitudes above 30,000 ft. To solve this problem, analysis was done on the existing BLDS which determined the heating requirements, around 50 watts, needed to keep the internal temperature within the rated operating range for the electronic components. Different methods to provide heat were investigated and it was decided that the design would be a ducted axial turbine similar to a micro-ram air turbine (micro-RAT). This design was chosen due to the high potential for efficiency while reducing the weight and size of the turbine. The micro-RAT was designed around a high efficiency generator which was put through testing before the design was complete. The generator testing showed it was capable of producing 350 watts, seven times the specified requirements. A second test was also performed during the design phase to prove the concept of an axial turbine. A model airplane rotor was attached to the generator and run in the wind tunnel. The test was ended before a maximum output could be reached but the data collected proved the generator could perform at high speed and enough power was available in the wind to meet the design requirement. To design the rotor geometry, all parts were made in a rapid prototype machine and two sets of fifteen rotors were created, each with different adjustments made to the pitch, chord, and number of blades. The rotors were tested in the wind tunnel and the rotor with the best performance (projected power generation of 65W at operating conditions) was selected. The final design was then cast in Inconel 718. The following report explains the entire design process in detail. It describes and defends the analysis methods chosen and explains the testing procedures and results.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/2
https://digitalcommons.calpoly.edu/context/mesp/article/1003/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
RAM
turbine
wind turbine
micro-RAT
boundary layer
Energy Systems
oai:digitalcommons.calpoly.edu:mesp-1004
2009-12-08T01:26:38Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Best-in-Class Global Bumper Reinforcement Beam
Bautista, Garret Anthony
Hardin, Chad Anthony
Taylor, Benjamin Ray
Modern bumper systems are governed by laws and regulations imposed separately by various countries. Today, the regulations in China, North America, and Europe are becoming more similar, but there is not a widely accepted bumper reinforcement that meets the requirements of all markets around the globe.
A universal bumper reinforcement beam incorporating Plug-n-Play techniques was developed to meet and exceed all testing requirements and performance standards of each country. These Plug-n-Play techniques consist of adding energy absorbing attachments to the front of a base bumper beam. Simple beam analysis and FEA were the primary analysis tools in the development of the bumper beam system. Plug & Play techniques were utilized to increase the performance of the universal bumper across all markets.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/8
https://digitalcommons.calpoly.edu/context/mesp/article/1004/viewcontent/Final_Project_Report_FabRev.pdf
Mechanical Engineering
DigitalCommons@CalPoly
bumper
beam
steel
pedestrian
automobile
Applied Mechanics
Computer-Aided Engineering and Design
oai:digitalcommons.calpoly.edu:mesp-1005
2020-02-03T22:59:29Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Hydraulic Hand Press Final Project Report
Brown, Nathaniel Marc
Knorr, Matthew Thomas
This report provides a thorough description of the design of a hydraulic hand-operated press by mechanical engineering students at California Polytechnic State University, San Luis Obispo, California, for the Estrella Warbirds Museum in Paso Robles, California. It begins with research into hydraulic operations, a brief study of fluid power and incompressible fluids, and a look into existing products. Specified customer requirements stipulate the loading and general size constraints. As part of the project, a schedule is laid out following industry techniques. Brainstorming and decision matrices are utilized as well, conveying our design process. A basic structure is developed using strength of materials, beam bending theory, applied/allowable stress analysis, and material deflection. Additional features are developed based on a more specific investigation of customer requirements. This report not only covers the press design, but also documents its construction and testing of the structure. Cost analysis and material choices are relayed along with a complete set of engineering drawings for the manufacture of the press. Testing and failure modes are analyzed with an overall goal of customer safety in mind.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/5
https://digitalcommons.calpoly.edu/context/mesp/article/1005/viewcontent/Hydraulic_Hand_Press_Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Pascal's law
fluid power
winch and pulley
10 ton press
Estrella Warbirds museum
hydraulic cylinder
Applied Mechanics
oai:digitalcommons.calpoly.edu:mesp-1006
2020-02-03T22:45:20Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Module Cover Conductivity Enhancement
Dhanens, Niles
Fortner, James
A clam shell module cover for printed circuit boards (PCB) has been designed for use in Boeing’s AECM cabinet. The cover utilizes materials with high thermal conductivity and cools the PCB by conducting the heat to a cold plate interface. Materials were compared and aluminum 6061-T6, aluminum 3003, and annealed pyrolytic graphite (APG) were chosen. A prototype was built and tested using aluminum 6061-T6 which was able to dissipate 57.7% of the projected wattage. Issues may include unforeseen complications in assembly along with components performing at lower levels than specified by manufacturers. The APG prototype was unable to be tested since it was not completed and shipped in time. Aluminum 3003 was found to be too scarce and expensive for the .75” plate needed for the prototype.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/4
https://digitalcommons.calpoly.edu/context/mesp/article/1006/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
conduction cooled
printed circuit board cooling
Heat Transfer, Combustion
oai:digitalcommons.calpoly.edu:mesp-1008
2010-01-07T19:32:33Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Air Cooling for AECM Module, Final Project Report
Whipp, Kevin
Caulk, Abraham Bruno
Advancements in electronics have created the need for improved cooling standards. The AECM standard, created to replace the antiquated ARINC 600 specification for aircraft, draws inspiration from a cooling specification known as VITA 48.2. The ARINC standard is in early stages of development and this project researches the feasibility of using air as a convective fluid instead of a liquid, the fluid used in the VITA specification.
A performance factor calculated from the ratio of the heat dissipated by convective heat exchanger plates over the power used to cause forced convective flow over said plates helps to quantify the effectiveness of various cooling scenarios.
Design development of the heat exchangers resulted in a plan to manufacture and test six different heat exchanger configurations. Five of these used various assortments of porous foam aluminum; the sixth used a more conventional finned design. To house and test the effectiveness of these configurations a testing platform was created to control and measure appropriate testing values. Before each configuration was tested, the setup was sealed to prevent leaks and insulated to minimize heat transfer sources beyond the effects of the controlled and measured convective air.
Notable results include a 10ppi, 8% density porous aluminum foam heat exchanger which resulted in both the largest pressure drop, 2.7 inches of water and heat dissipated at 301 watts at a flow rate of 72 CFM. The performance factor of this plate was the lowest at 13 [Watts/Watts]. Conversely, the largest performance factor at similar flow rate was seen in the finned plate design as 58 [Watts/Watts] at 71 CFM. However, its heat transfer for this flow rate was 167 Watts. Test results and analysis for each prototype is given within the report. A general plot of the results provides a valuable selection tool for choosing an appropriate starting design point to develop AECM air cooling for Boeing.
The heat dissipation seen from the air cooled heat exchanger plates is competitive with the liquid cooled module plates and deserves further investigation. The added benefits of natural convection and the weight savings of air cooling further endorse this conclusion.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/10
https://digitalcommons.calpoly.edu/context/mesp/article/1008/viewcontent/CalPolyFinalReport_Boeing_AECM_Air_Cooling.pdf
Mechanical Engineering
DigitalCommons@CalPoly
thermal management
convection cooling
heat exchanger
electronics cooling
aircraft
Boeing
Heat Transfer, Combustion
oai:digitalcommons.calpoly.edu:mesp-1010
2010-01-04T23:09:20Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Pump Sequencing Optimization
Allan, John S.
Nekimken, Kyle J.
Weills, Spencer B.
The purpose of this document is to demonstrate the design, production, and testing of optimum pump sequencing logic for variable frequency drive (VFD) pumps in commercial heating ventilating and air conditioning (HVAC) systems. The product will be developed by Pump Efficiency Solutions (PES), which is a group of Cal Poly students working on their senior project. The product is being developed for Trane, an industry leader in large scale HVAC systems. MATLAB™, Microsoft Excel, Pump System Improvement Modeling Tool™ (PSIM), and fluid mechanics hand calculations were used during software development. Next, we converted the program into Trane’s graphical programming language (TGP) and applied these algorithms to a MP580 Controller.
There were three separate phases to the project. The phases, each lasting one quarter, can be designated as conceptualizing, modeling, and programming. During the design conceptualizing PES gathered information on commercial HVAC systems and VFD pumps which can be implemented into these systems. We then modeled a simple system using PSIM and developed a series of optimization algorithms within excel to optimize the quantity of the pumps for a given system load (flow-rate) and pressure requirements. The completion of the model represented the end of the conceptualizing phase and beginning of the modeling phase.
For the second phase of the project, we took the analysis from Excel and used it to develop a general algorithm which can be applied to a variety of different systems. Essentially, it incorporates pump curves for the specific pumps selected for a system and calculates the theoretical best number of pumps to run for maximum system energy efficiency at a given load. This algorithm can be adaptable to any system and will be incorporated into Trane’s pre-existing system control software. The program will have permanent inputs based on the components and geometry of the system in addition to dynamic inputs that define the current operating conditions due to a transient load. The outputs of the program will be number of pumps that should run in order to match the load and minimize power consumption.
In the programming phase, we translated our MATLAB™ program into a series TGP files to make the algorithms compatible with the controller. To simulate changes in system head and flow rate, we connected two potentiometers to the controller. Both MATLAB™ code and MP580 controller simulation successfully calculated the optimum number of pumps to operate given any system inputs within a standard operating range.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/7
https://digitalcommons.calpoly.edu/context/mesp/article/1010/viewcontent/Senior_Project_Allan_Nekimken_Weills.pdf
Mechanical Engineering
DigitalCommons@CalPoly
energy
efficiency
HVAC
pump sequencing
chilled water
Trane
Energy Systems
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1011
2009-12-15T22:31:53Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Two-Material Cylinder Stress Response Software
Gage, Katherine
Highstreet, Matt
Del Cid, Liz
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/6
https://digitalcommons.calpoly.edu/context/mesp/article/1011/viewcontent/Library_Copy__no_actual_report_2.pdf
Mechanical Engineering
DigitalCommons@CalPoly
RAFTS
dual-layer
pipe
stress
thermal
Heat Transfer, Combustion
oai:digitalcommons.calpoly.edu:mesp-1012
2010-01-07T19:25:13Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Chip Removal Tool Project
Mori, Brett
Cote, John
Rowland, Kyle
Wells, Micah
The Cal Poly senior project team worked with Helical Products Inc. to develop an automated method for removing swarf and chip buildup from the drill bits of their CNC milling machines. The removal methods in this report were designed for and tested using a Fanuc Robodrill while keeping the potential in mind for their use in other CNC milling machines. After extensive background research, preliminary and prototype design and testing the final chosen design is shown below. The cleaning device is made from flexible sheet metal and placed on a fixture that occupies one of the two pallet locations inside the CNC machine. The sheet metal is flexible enough to accommodate the full range of drill bit sizes requested by Helical and strong enough to hold the chips in place as the drill bit is removed from the cleaning device, cleaning the drill bit.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/9
https://digitalcommons.calpoly.edu/context/mesp/article/1012/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Metal chip
chip removal
helical
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1013
2010-01-07T19:38:36Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Supermileage Team - Urban Concept Competition Vehicle Chassis Design Report
Allport, Andrew
Braico, Kevin
Charles, Kevin
Kyi, George
Lai, William
This research and design project was proposed by the Cal Poly Supermileage team. They have requested for our team to design an Urban Concept car, a new category of vehicles to compete for fuel efficiency in the Shell Eco-marathon in 2010. The primary focus of our team is in the design and construction of a chassis the Supermileage team can use for the 2010 competition in Fontana, CA. This design must meet dimensional and functional requirements set by Shell while being designed to maximize efficiency in the competition.
There were various chassis concepts under consideration that would possibly work for this competition, but through various design calculations, one chassis was chosen as the best choice for our final design. Our final design of a carbon fiber backbone chassis showed to be the best in minimizing weight while having sufficient strength with a safety factor of over 40, and minimal deflection from various loads and torsional testing of less than 0.1” in our expected worst case scenario.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/11
https://digitalcommons.calpoly.edu/context/mesp/article/1013/viewcontent/Urban_Concept_Chassis.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Shell Eco-marathon
chassis
carbon fiber
supermileage
Vacuum Resin Infusion
Applied Mechanics
Manufacturing
Mechanical Engineering
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1015
2010-01-21T23:17:56Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Broccoli Floret Cutter: Gold Coast Packaging, Inc.
Stamm, Sean
Salguero, Walter
Gomez Jr, Felipe
Duenas, Ruben
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/14
https://digitalcommons.calpoly.edu/context/mesp/article/1015/viewcontent/auto_convert.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/0/type/additional/viewcontent/Appendix_A_Final_Gantt.mpp
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/1/type/additional/viewcontent/Appendix_B_House_of_Quality.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/2/type/additional/viewcontent/Appendix_C_Testing_Plans_and_Results.docx
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/3/type/additional/viewcontent/Appendix_D_1.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/4/type/additional/viewcontent/Appendix_D_2.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/5/type/additional/viewcontent/Appendix_D_3.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/6/type/additional/viewcontent/Appendix_E_Testing_Cost.xlsx
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/7/type/additional/viewcontent/Appendix_G_KMT_cost_estimate.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/8/type/additional/viewcontent/Appendix_H_Belt_Tech.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1015/filename/9/type/additional/viewcontent/New_Conveyor_6_04_09.zip
Mechanical Engineering
DigitalCommons@CalPoly
Water jet
Broccoli floret
clean cut
Santa Maria
oversized floret
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1016
2010-01-07T19:41:14Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Indirect Pipe Pressure Measurement
Barkley, Clayde
Betts, Mikel
Olay, Anthony
Statement of Confidentiality The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/12
https://digitalcommons.calpoly.edu/context/mesp/article/1016/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Pipe pressure
pressure measurement
indirect pipe pressure
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1018
2010-01-21T17:53:05Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Harvesting Human Exercise Power at the Cal Poly Rec Center: Exercise Bike Power Generator II
Rounsevell, Jared
Shubert, Claire M
Snitowsky, Matthew
Wong, Andrew
The overall goal of this project is to create a workable system to harvest the power generated on exercise bikes at the Cal Poly Rec Center so that the electricity produced can eventually be sent to the power grid. Our part of the project will focus on the mechanical harvesting of this power with the goal of using the product to run the Morningstar ProStar 12V 30 amp charge controller available from the 2007 project. Eventually, the power produced could be fed to the grid in the appropriate form. The finished result of this project should be marketable to exercise bike manufacturers, particularly for the manufacturers who provide the bikes located in the Cal Poly Rec Center: LifeFitness and Star Trac. As part of the marketability, the product must be safe, quiet, reliable, visually appealing, and cost effective; costing less than the price of the electricity it will save. Ideally the device will be compatible with and will not change the footprint of the existing exercise bikes and also will be easy to maintain.
2009-01-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/13
https://digitalcommons.calpoly.edu/context/mesp/article/1018/viewcontent/1018.pdf
Mechanical Engineering
DigitalCommons@CalPoly
energy
exercise
grid-tie
Energy Systems
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1019
2010-02-18T17:41:17Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
The Magic ATM
Iraeta, Amber
Sy, Jason
Brower, August
2009-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/15
https://digitalcommons.calpoly.edu/context/mesp/article/1019/viewcontent/Final_Report_Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Museum
Children
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1021
2010-05-27T18:05:20Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Formula SAE Interchangeable Independent Rear Suspension Design
McCune, Mike
Nunes, Daniel
Patton, Mike
Richardson, Courtney
Sparer, Evan
The Suspension Solutions design team has completely designed built and tested an independent rear suspension system for the 2008 FSAE car. The car currently features a solid rear axle, and the task of converting it to incorporate an interchangeable rear suspension has been undertaken in order to quantify the advantages and disadvantages of each design philosophy. The car has been properly tested with both the solid axle and independent rear suspension side-by-side, however more testing is suggested. After pushing both setups to their limits on a 50ft diameter skid pad, the test results were quantified, and a final comparison between the two design philosophies was tabulated. From our limited testing we can easily conclude that an IRS FSAE car, at minimum, can match the performance of the previous solid axle setup, while being 22lbs heavier. We suspect its performance advantage to become apparent with additional testing however. More subjectively, it was found that the IRS handled more predictably and was easier for novice drivers to control and drive. Our results help quantify the advantages and disadvantages of each system and can be used by future FSAE teams to make more informed design decisions. Our independent rear suspension design includes an unequal length A-Arm configuration, new rear uprights, spindles and hubs, a Torsen differential, and an additional steel space frame to connect all of the listed components to the CP08 chassis. Our initial analysis shows that a performance edge between the two competing systems is dependent on the overall weight of each system and our preliminary testing results help confirm this analysis.
2009-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/16
https://digitalcommons.calpoly.edu/context/mesp/article/1021/viewcontent/Suspension_Solutions_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
FSAE Formula Suspension Drivetrain Drive Train vehicle Dynamics Independent Rear Suspension Solid Rear Axle IRS
Acoustics, Dynamics, and Controls
Applied Mechanics
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1022
2010-07-21T21:58:04Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Cal Poly Sit Ski: Final Report
Bergreen, Marc
Bydalek, David
Gompertz, Ross
The purpose of this project was to design, build, and test a Sit Ski for the US Adaptive Ski Team. The design is for Mr. Marlon Shepard, a new competitor on the Ski Team, who is in need of a new racing sit ski. Some of the top design priorities include reduced weight, increased rider comfort, and increased durability over existing designs. With these design considerations in mind, our team from Cal Poly designed, built and tested a cross country sit ski in June 2010 at the mechanical engineering senior project expo. The project was sponsored by a National Science Foundation grant written by Dr. Brian Self of the Mechanical Engineering Dept. and Dr. Kevin Taylor of the Kinesiology Dept. at California Polytechnic State University, San Luis Obispo. We also worked closely with Mr. Jon Kreamelmeyer, the Developmental Coach of the US Adaptive Ski Team to determine the needs and goals of the project.
2010-05-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/39
https://digitalcommons.calpoly.edu/context/mesp/article/1022/viewcontent/Cal_Poly_Sit_Ski_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Sit Ski
Paralympic
Adapted Activity
Cross Country Ski
Nordic Ski
National Science Foundation
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1023
2010-06-08T22:32:51Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Radiofrequency Ablation Catheter
Razzari, Ryan
Kasimatis, Amand
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/19
https://digitalcommons.calpoly.edu/context/mesp/article/1023/viewcontent/Medtronic_Ablation_Frontiers_Final_Design_Report_6_4_10.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1024
2010-06-08T22:28:51Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Final Design Report: Vibration Table for CVBT- VT4 Design Team
Bevan, Thomas
Laurino, Matthew
CVBT (Center for Vocational Building Technology) teaches villagers in Northeastern Thailand how to make various concrete products. Many of these products require the use of a vibration table in order to remove air and water trapped within the concrete. Removal of these voids improves the outside surface of the molded concrete, and also allows the use of a lower water to cement ratio, allowing a much stronger finished product. The currently used vibration table (VT3) has several disadvantages associated with it, which the new table (VT4) eliminates. Compared with the VT3, the VT4 has a more rigid tabletop and improved suspension system in order to vibrate the concrete within the wooden mold frames and maintain the integrity of concrete molds. Additionally, with the use of a single Damping Mass of 10 kg, the VT4 outputs the required amplitude of 0.3 to 0.4 mm and frequency of 3900±200 RPM to correctly consolidate concrete ranging from 2 to 40 kg. Furthermore, as desired, the VT4 uses the same motor and support frame as the VT3.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/18
https://digitalcommons.calpoly.edu/context/mesp/article/1024/viewcontent/FinalDesignReport_CVBT_VT4.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1024/filename/0/type/additional/viewcontent/FinalDesignAppendices.zip
Mechanical Engineering
DigitalCommons@CalPoly
Geoffrey Wheeler
Concrete
Cement
Compaction
Precast
Slabs
Acoustics, Dynamics, and Controls
Computer-Aided Engineering and Design
Mechanical Engineering
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1025
2011-09-26T23:03:44Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Improved Commuter Rail Workstation Table through Crash Energy Management
Ness, Trevor
Baker, Brandon
Workstation tables in commuter rail trains have been identified as an area for improving passenger safety during train collisions. The goal of this senior project was to create such a table using a composite sandwich structure designed to safely absorb energy. Testing of previous table designs was used to establish engineering specifications for the static loading, work surface durability, and impact performance requirements of the new table. Analytical and finite element models were used to analyze new concepts until a design was achieved that could meet all specifications. The tabletop developed consists of a crushable aluminum honeycomb core with fiberglass laminates on top and bottom. This sandwich structure uses a combination of E‐glass cloth and S‐glass unidirectional tape in a unique layup that lowers impact forces inflicted on the passenger while maintaining overall table strength during normal loading conditions. Four tables were built during the senior project. These tables were fabricated using a combination of fiberglass layup, metal working, welding, and adhesive bonding. Using these tables, four validation tests were conducted to evaluate the performance of the new design: work surface indent testing, vertical and horizontal static loading, quasi-static crush testing, and dynamic impact testing. The results of these tests showed that the new table met all of the engineering specifications outlined at the beginning of the project. The work surface was stronger than expected, showing deformation at a load of 175lbs; well above the requirement of 65lbs or more. The table easily withstood the 225lb vertical and 337lb horizontal static loading requirements at all critical locations. Quasi-static testing showed that a 1500‐2000lb edge load is needed to initiate crushing of the table. Although the desired goal of 800‐1000lb was not achieved, the facesheets did begin buckling in the unbounded sections as designed at about 1000lbs; only 100lbs from the 900lb buckling load predicted by FEA. Unfortunately, the tables continue to support load after initial buckling up to the witnessed 1500‐2000lbs. In dynamic impact testing, the table produced some of the lowest peak acceleration levels of any design to date. The peak acceleration levels recorded were 14g and 20g for the two impacting masses; well below the specification of 30g for any time period over 3ms. The tabletop structure also crushed evenly and the facesheets remained bonded and contained under the aluminum edging. The overall metal structure of the table also held its form, suggesting that the passenger would remain safe during such an impact. The new table costs about $475 and weighs 37lbs.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/20
https://digitalcommons.calpoly.edu/context/mesp/article/1025/viewcontent/Full_CEM_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
LTK
CEM Table
Crashworthiness
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1026
2010-06-21T19:28:44Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Traversing Probe Assembly
Bugni, Josh
Sofranko, Andrew
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/30
https://digitalcommons.calpoly.edu/context/mesp/article/1026/viewcontent/Traversing_Probe_Assembly___Senior_Project___Cal_Poly___NGC.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Traversing Probe
Boundary Layer Data System
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1027
2010-06-08T22:24:34Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Brinell Limit Testing Machine - Final Design Report
Cloutier, Joseph
Kessler, Joshua
Jaskulsky, James (Mike), II
In keeping with the California Polytechnic State University motto of “Learn by Doing”, this project was performed by Mechanical Engineering students Joe Cloutier, Josh Kessler, and Mike Jaskulsky II as their senior project. Starting in the Fall 2009 quarter and reaching completion with the end of the Spring 2010 quarter, this project provided these students with experience in application of a formal engineering design process in the solving of an open-ended engineering design problem, in developing and maintaining an engineering project schedule, as well as providing further experience working on an engineering team.
As the engineers of Parker Aerospace seek to use different metals in their high performance bearing applications than have traditionally been used in the past, often the data does not exist for them to be able to accurately design against brinelling. To provide their engineers with this data, Parker Aerospace proposed the following as a senior project to Cal Poly’s seniors. They requested that a team of engineering students would design, fabricate, assemble, and validate through testing a machine that would determine the loads at the onset of brinelling for different metals and would allow for multiple measurements to be taken from each set of sample materials tested. Some of the secondary design requirements were for the test fixture to be portable, small enough to be used as a desktop unit, be able to accommodate a thermal chamber around the test area, and also provide measurements of the total deformation of the sample materials when under load. Also, time allowing, Parker Aerospace requested that the senior project team devote the last part of the last quarter to using the machine to provide data for a number of materials that they will provide.
The loads that the test machine would need to deliver to test all material samples to the onset of brinelling were determined through hertzian contact stress analysis. These calculated loads were then used to determine the deflection of the sample materials, allowing for the sizing of structural components and selection of necessary sensors.
The design for the fixture was developed around the initial design concept displayed in the Project Proposal by Parker Aerospace. After developing a number of different designs and variations of specific components of the fixture, the best of these design variations were presented to a panel of Parker Aerospace’s engineers during a Preliminary Design Review. From these designs, a final design was selected and various modifications were made as suggested by Parker. A final design was decided on and the rest of the project was completed by the end of the Spring quarter.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/17
https://digitalcommons.calpoly.edu/context/mesp/article/1027/viewcontent/Brinell_Limit_Testing_Machine_Final_Report_Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1028
2010-06-21T19:24:17Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
SunPower T0 Washing System
Joy, Charlie
Smith, Atlund
Hohn, David
Wallace, Eric
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/29
https://digitalcommons.calpoly.edu/context/mesp/article/1028/viewcontent/SunPower_T0_Washing_System_Sponsor_Copy.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1029
2010-07-21T21:43:13Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Supermileage Seat and Wheel Development and Production: Final Report
Alvernaz, James Casey
Chan, Verent
Hamstrom, Brian
Lewis, David
Sciaini, James
This report documents the design and manufacturing efforts of the Cal Poly senior project team Central Coast Composites. It details the design, analysis and manufacturing of a composite seat and wheels for the Cal Poly Supermileage team. It further outlines suggestions for future efforts to manufacture composite wheels for Cal Poly Supermileage team's Urban Concept Vehicle.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/38
https://digitalcommons.calpoly.edu/context/mesp/article/1029/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Wheels
Composite(s)
Supermileage
Carbon Fiber
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1030
2010-06-21T19:19:38Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Medtronic Universal Crimping Machine
Ginochio, Justin
Hanson, Andrew
Dieterle, Zachary (Zach)
This project is geared towards the redesign and implementation of a crimping tool for use in the manufacturing of catheters produced by Medtronic Inc. Catheters require two steering cables to maneuver the end of the catheter through the body. The steering cables have a sleeve that is crimped onto their end in order to hold the cable in place inside the catheter steering handle. The current crimping tool, designed by Astro Tool Corp, has a few problems associated with its design. Additionally we are trying to get rid of a step in the manufacturing process that involves the adhesive, cyanoacrylate, being placed inside the sleeve to be crimped. The cyanoacrylate is added to increase the strength of the crimp from three to four pounds of force in shear to around eighteen pounds. However to simplify the manufacturing process we will need to come up with a crimp style for our device that will increase the allowable axial force to eighteen pounds with a metal to metal crimp alone and eliminate the need for an adhesive. The redesigned crimping tool will need high tolerance fit for each crimp as well as a repeatability of crimps for each cycle.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/28
https://digitalcommons.calpoly.edu/context/mesp/article/1030/viewcontent/ME430_Senior_Project_Final_Design_Report.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1030/filename/0/type/additional/viewcontent/Die_Head_Assy_Exploded_View_FINAL.SLDDRW
https://digitalcommons.calpoly.edu/context/mesp/article/1030/filename/1/type/additional/viewcontent/Die_and_Head_Assy_with_Alignment_Tool.SLDASM
https://digitalcommons.calpoly.edu/context/mesp/article/1030/filename/2/type/additional/viewcontent/Medtronic_Crimping_Machine.zip
Mechanical Engineering
DigitalCommons@CalPoly
Crimping Machine
Catheter
Crimp
Crimper
Biomechanical Engineering
Electro-Mechanical Systems
oai:digitalcommons.calpoly.edu:mesp-1032
2010-06-11T00:27:27Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
PG&E Flow Loop Simulator
Brooks, Cole
Berger, Seth
Thacker, Ben
PG&E’s Diablo Canyon Power Plant requested a full-sized Flow Loop Simulator to train technicians by giving them hands-on experience. The basic design requirements were established to determine the scope of the project and develop the specific characteristics of the system. The detailed system design is composed of a piping schematic, a three-dimensional layout of the system components and piping, and a skid structure for the support and transportation of the system. Heat transfer and fluid mechanics were used to analyze the system to size components.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/22
https://digitalcommons.calpoly.edu/context/mesp/article/1032/viewcontent/Final_Report_v.5.7.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Fluids
Heat Transfer
System
Pump
Pipe
Heat Transfer, Combustion
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1031
2010-06-21T19:12:05Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Flow Loop Simulator
Ista, Tyler
Rehm, Kevin
Starbuck, Matt
PG&E’s Diablo Canyon Power Plant has requested a full-sized flow process system for training of technicians by providing them a hands-on experience in a controlled environment. The basic design requirements were established to determine the scope of the project. An initial system layout was selected from a variety of concepts after similar system schematics, components, and processes had been researched. The resulting schematic was flexible to suit several needs of the control aspect while remaining simple.
Design efforts resulted in a system capable of many configurations; allowing for implementation of three training experiments. These experiments involve control of tank level and heat transfer (via temperature drop across a heat exchanger) as well as a vortexing experiment. Analysis supports the effectiveness of these experiments in meeting the desired specifications. Without a completed system, installation and testing of the controls system was impossible. PG&E and the professors of Cal Poly will determine what future projects need to be started to finish the simulator.
Note that this report is for the control team and does not communicate many of the designs associated with the main system.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/27
https://digitalcommons.calpoly.edu/context/mesp/article/1031/viewcontent/Flow_Loop_Simulator.pdf
Mechanical Engineering
DigitalCommons@CalPoly
process controls
training
level control
heat transfer
vortex
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1034
2010-06-21T19:33:08Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Adapted Paddle Launch Vehicle
Menton, Duane
Granstrom, Erik
Resendez, Matthew
Crilly, Shannon
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/31
https://digitalcommons.calpoly.edu/context/mesp/article/1034/viewcontent/Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1033
2010-06-11T00:24:42Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Flying Blanket
Daquioag, Keane
Grable, Ryan
Reynolds, Eric
Spak, Kaitlin
This report contains the design plan for PolyNet Design’s Senior Design Project. The PolyNet Design team comprises four mechanical engineering seniors who created a prototype for Raytheon Missile Systems. The overall goal of this project was to create a system that will launch a blanket from a packaged and folded state to an unfurled state and then securely wrap the blanket around a target. The team began with five initial concepts, and chose the Four-Rod model as their first construction concept. Construction of the Four Rod model evolved through several design iterations. The team tested the final prototype extensively, using high speed camera footage to more accurately analyze the prototype’s performance. The prototype was demonstrated at Raytheon’s university design competition on April 26th, 2010. Cal Poly’s PolyNet Design team won the competition with their prototype.
2010-05-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/21
https://digitalcommons.calpoly.edu/context/mesp/article/1033/viewcontent/Flying_Blanket_Senior_Project_Submission.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1035
2010-06-11T00:32:22Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Human Powered Helicopter
Haven, Brenton
Hudson, Daniel
Knight, Eli
Fall of 2009, The Cal Poly Aircraft Construction club restarted Cal Poly's quest for the Sikorsky prize. The Sikorsky prize rewards the first a human powered helicopter to sustain controlled hover for one minute without stored energy. Throughout the 1980’s, Cal Poly made three attempts; the most successful being the DaVinci III. Also, the DaVinci III was the first ever publically recognized successful human powered helicopter to leave the ground. This scope of this project is to improve the DaVinci III fuselage and drivetrain for the DaVinci IV. The DaVinci IV adopts the DaVinci III system layout and improves both weight and efficiency. The helicopter will be a single tip driven rotor with a single pilot. The tip propellers will be turned by unspooling thread at the propellers with a winch spool that the rider will be supplying power to. Specifically this document contains the fuselage, rotor hub, and drive train for the DaVinci IV.
The fuselage functions as the support structure for the drivetrain and rider. The fuselage will maintain an efficient riding position while providing a rigid structure for the drivetrain to transmit power from the rider to the propellers. The rotor hub will attach the fuselage to the rotor while the rotor rotates above the pilot. The drive train will be a winch driven by the rider’s pedal strokes. The winch will spool the thread from the propellers, thrusting the propellers forward. The DaVinci IV will be 30% lighter and better drivetrain efficiency.
This project will provide the framework for Cal Poly's next attempt at the Sikorsky prize. This project includes valuable research from the previous DaVinci helicopters, uses engineering techniques to understand unknown flight characteristics, and provides a recommendation to the future DaVinci series helicopters. Upon completion, this project will test fuselage, drivetrain, and rotor hub with data to help future designers model the system.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/23
https://digitalcommons.calpoly.edu/context/mesp/article/1035/viewcontent/HumanPoweredHelicopter_FinalDesignReport.pdf
Mechanical Engineering
DigitalCommons@CalPoly
human power
helicopter
DaVinci
sikorsky prize
composite
light wieght
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1037
2010-07-07T18:09:50Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Solar Turbines: Abradable Seal
Fong, Jason
Pease, Andrew
Plaine, Trevor
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/34
https://digitalcommons.calpoly.edu/context/mesp/article/1037/viewcontent/Design_Report___Final_CORRECTED.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1038
2010-07-21T22:02:03Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Composite Suspension for Formula SAE Vehicle
Olsen, Reid
Bookholt, Andrew
Melchiori, Eric
This senior project report describes how a redesign of the 2008 Cal Poly Formula SAE vehicle's suspension components was conducted using carbon fiber components.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/40
https://digitalcommons.calpoly.edu/context/mesp/article/1038/viewcontent/Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Composite
Carbon
Formula
SAE
Fiber
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1039
2010-06-21T19:05:56Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Solar Array Suspension Mechanism Final Design Report for ATK Space
Gould, Alex
Kruse, Randon
Graul, Jeremy
Barney, Patrick
The purpose of this project is to improve the existing Solar Array Suspension Mechanism used by ATK Space for the manufacturing and testing of deployable solar arrays. The current system requires too much time to operate and has too many removable parts that may fall and damage the solar arrays. Through the design and verification process the team successfully constructed a quick connecting suspension mechanism that requires no tools to use and has no removable parts. The final design includes the existing force gauge and large adjustment bars used by ATK Space with the addition of a compression spring adjustment mechanism and a Socket Stud connection mechanism. The system was proof loaded at 300 lbs without any components yielding. The lowest factor of safety is about 5.2, which can be found on the Socket Stud. The estimated cost of the system is $2900, which is significantly less than the specified $8000 maximum cost.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/25
https://digitalcommons.calpoly.edu/context/mesp/article/1039/viewcontent/SASM_Final_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Quick Connect Spring Adjustment
Applied Mechanics
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1040
2010-06-21T19:08:46Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Strider
Johnson, Eric
Trask, Alex
Garcia, Ricardo
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/26
https://digitalcommons.calpoly.edu/context/mesp/article/1040/viewcontent/Submitted_report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Applied Mechanics
Biomechanical Engineering
Engineering
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1041
2010-06-21T19:00:39Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Edwards Automation Final Project Report
Johnson, Benjamin (Ben)
Masters, Joel
Stewart, Matthew (Matt)
The body of this work has been created for Edwards Lifesciences in conjunction with senior project requirements. As such, the information produced and contained within is under a non‐disclosure agreement. As per request by sponsor, the body of the work will not be submitted to any outside parties, and the title page will serve as proof of completion.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/24
https://digitalcommons.calpoly.edu/context/mesp/article/1041/viewcontent/Statement_of_Confidentiality_libvers.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Automation
Edwards
Applied Mechanics
Other Engineering
oai:digitalcommons.calpoly.edu:mesp-1042
2010-07-01T17:02:04Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Cal Poly FormulaSAE Engine Development
Ales, Matthew
Mendoza, Rafael
Thomas, Mitchell (Mitch)
Vinokurov, Leon
This project, engine development, was sponsored by Cal Poly FormulaSAE. The FormulaSAE team proposed this project in order to have a more reliable and more powerful engine for their car, to improve their overall performance at their competition. The baseline output of the engine is 37 hp and 24 lb-ft of torque. The goal of this project was to increase the output to 45 hp, to meet requirements determined by a trade study. We planned to increase the engine’s output using several strategies.
We evaluated all potential design decisions using a Ricardo WAVE model. Ricardo WAVE is a software tool that can simulate the operation of engines and their components. Using accurate measurements of important engine parameters, WAVE simulated the results of engine dyno testing, allowing us to narrow down our design choices quickly and inexpensively. The model predicted a baseline of about 40 hp and 30 lb-ft of torque. When comparing the WAVE model and the baseline dynamometer test of the engine for model verification, the power curves were similar but with the simulation curve being shifted toward higher engine speeds. The model predicted higher power because the model shows power at the flywheel while the dynamometer measures power at the brake, after the gearbox and sprockets. The model was also used to predict the effects of increasing the engine’s compression ratio as well as the effect of different camshafts and valve timing.
By carefully determining gear ratios and rear sprocket size we allowed the car to have as much acceleration as possible in each driving event. The amount of force that the car transmits to the ground depends directly on the gear ratios in the transmission and the ratio of the engine sprocket to the axle sprocket. Thus, gearing is an important aspect of overall car performance and is set up to match the powerband of the engine.
In order to increase power the camshaft profile and timing were both altered in order to provide a powerband more suitable for the FormulaSAE competition. The current powerband is designed for the high revving endurance motorcycle where top speed is critical and the intake is unrestricted, while FormulaSAE places a premium on power at lower speeds to help the car accelerate out of corners. Another major reason for bringing the powerband down lower is that at lower engine speeds, the effects of the restrictor are minimized when compared to higher engine speeds.
The engine intake directly affects the ability of the engine to intake air. More air in the cylinder means more fuel burned and more power, so devising a way to maximize the amount of air in the cylinder is an excellent way to increase engine power. As the engine is essentially sucking air in from the atmosphere, nearly anything that reduced head loss in the intake tract was beneficial. Wave dynamics were equally, if not more, important in intake design. By careful analysis of pressure wave dynamics, the intake tract was optimized for increased power at a chosen engine speed.
As with the intake system, the exhaust system focused on reducing pumping losses and harnessing wave dynamics to increase engine performance at a specific engine speed.
All of these efforts together give the FormulaSAE team the performance it needs to perform well at the FormulaSAE competition in Detroit. As a result of our efforts, the engine makes 42 horsepower at peak, which is a 13.5% increase. The engine’s peak torque is now 27.5 lb-ft, which is a 14.5% increase. The engine also has a 10% increase in power, as well as a 12.5% increase in torque across the powerband, as we shifted the powerband to a lower engine speed.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/32
https://digitalcommons.calpoly.edu/context/mesp/article/1042/viewcontent/SPEED_Systems_Final_Report_6_11_2010.pdf
Mechanical Engineering
DigitalCommons@CalPoly
FormulaSAE
Formula
SAE
Engine
Development
FSAE
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1043
2010-07-22T21:56:35Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Water Conservation Device
Eichermueller, Michael
Moren, Michael (Mike)
Liefhold, Florian
von Vopelius, Philipp
Wagner, Christoph
Stendel, Tommy
Venzor, Jacob
The Water Conservation Project (WCP) is a design concept to reduce the water consumption on startup of a shower. Every time a shower is started with a conventional tank water heater, approximately 7.5 liters of cold water is flushed down the drain without being used before the hot water reaches the faucet. For a city the size of San Luis Obispo, this amounts to approximately 121 million liter of water per year. The main goal of this project was to devise a way to conserve the cold water that is contained in the hot water pipes before every shower. Ultimately, we searched to create a system that minimizes the amount of work required by the consumer, yet still allowed them the ability to shower conveniently. Wolfgang Kaml is the sponsor of WCP and the project was carried out by two collaborating teams at California Polytechnic State University San Luis Obispo and Munich University of Applied Sciences.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/41
https://digitalcommons.calpoly.edu/context/mesp/article/1043/viewcontent/WCD_Final_Rev_PDF.pdf
Mechanical Engineering
DigitalCommons@CalPoly
In-home Water Conservation Shower Toilet
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1044
2010-07-06T15:58:15Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Cisco Data Center Energy Efficiency
Sizemore, Brandy
Snook, Travis
Neumeister, William
The goal of the Cisco Systems data center efficiency study is to improve the energy efficiency of Lab C in Cisco’s Building 7. The main phases involved are research, energy analysis, CFD simulations, and lab testing. The first part of the project entailed research in the data center field. This included attending two lectures provided by Cisco, visiting the annual Silicon Valley Data Center Energy Efficiency Summit hosted by Network Appliance, going on many data center tours, and taking a 3-day 6Sigma CFD training class. Next, the 1st Law of Thermodynamics was applied to the CRAH (computer room air handler) unit as a preliminary analysis in order to gain insight on the air handler’s performance. Over winter quarter, HVAC equipment performance data was collected in order to develop numerical models for a chiller, CRAH unit, cooling tower, and water pumps using Engineering Equation Solver software. The models calculated the power requirements and efficiencies of this equipment over varying parameters. These parameters include flow rates due to variable frequency drives (VFDs) on the water pumps and CRAH units, chilled water temperature, outdoor air temperature, and lab room temperature. Once the individual equipment models were complete, they were integrated into a single, system level model for optimizing all parameters toward best energy efficiency of the system.
Another area of the project was implementing and testing cold aisle containment on a CFD model of Lab C. Containment curtains, blanking panels, and skirts were installed in the virtual model and the resulting temperatures of the lab were compared with the unmodified Lab C. Hot spots due to hot and cold air mixing and unequal distribution of the cold air supply were investigated.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/33
https://digitalcommons.calpoly.edu/context/mesp/article/1044/viewcontent/Cisco_Data_Center_Energy_Efficiency_Report_Final.pdf
Mechanical Engineering
DigitalCommons@CalPoly
data center
crah
cooling tower
chiller
cfd
cisco
Other Engineering
oai:digitalcommons.calpoly.edu:mesp-1045
2010-07-08T21:35:59Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
The San Luis Obispo Children's Museum Energy of Motion
Ligot, Patrick
Mich, Brian
Salazar, Jaime
Sanchez, Erik
Azeka, Steven
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/35
https://digitalcommons.calpoly.edu/context/mesp/article/1045/viewcontent/ME_430_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
SLO Children's Museum Energy of Motion
Education
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1046
2010-07-12T15:58:42Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Edwards Lifesciences: Heart Valve Tension Validation
Fochler, Lucas
Mark, Alex
Shah, Shilpan
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/36
https://digitalcommons.calpoly.edu/context/mesp/article/1046/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Biomechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1047
2010-07-14T23:41:55Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Guidable Motorcycle Headlight
Fritz, Billie B
Lloyd, Toby J
Motorcycling at night is an inherently dangerous situation and is compounded by poor illumination of the roadway when cornering through a turn. Due to stationary headlamps geometry being designed for upright riding position, cornering a motorcycle causes the illumination of the forward path to be decreased significantly. The goal of this project is to develop a lighting system that will improve road illumination for riders at night using guidable lights that deflect prior to and during a turn. In addition to developing a working prototype, this project’s intent is to work in conjunction with a partner from the school of business to present the project to investors and hopefully start a viable business.
A major challenge of this project is that the final product will have to be patentable in order to protect the intellectual property of the start-up business. By researching the United States Patent and Trademark Office online patent documents, the team found over a dozen patents related to this field of invention, some owned by the Kawasaki and Honda motorcycle companies, but none using our unique approach to guiding the lights.
Our team came up with a top concept that we believe will deliver superior performance and qualify for patent issuing. The top concept is mainly a three part mechatronics system using a microcontroller to direct lighting in the desired direction of a turn. The system will track the movement of the rider’s head to constantly monitor where he/she is looking in the roadway ahead. Then the microcontroller will redirect lighting to the same area. This concept allows a rider to see ahead through a turn before entering it and therefore drastically improve riding conditions for the rider at night. Furthermore, this innovation makes it possible to be issued a patent to protect our intellectual property.
The main purpose of this report is to define our engineering requirements, show the concept selection process, provide the reader with background information, and describe the functional aspects of the top concept. The project team was challenged with finding a suitable method to track the rider’s head movement in the harsh environment of a motorcycle. Most of the generated concepts had little promise of functioning reliably, if at all. Through extensive research the team has finally found all necessary components to make our approach to a guidable motorcycle lighting system work.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/37
https://digitalcommons.calpoly.edu/context/mesp/article/1047/viewcontent/Final_Design_Report_for_Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Motorcycle
Headlight
Adaptive
AFS
Leveling
Optical
Tracking
Guidable
Electro-Mechanical Systems
oai:digitalcommons.calpoly.edu:mesp-1049
2010-08-25T14:51:09Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
TK Ripper
Volk, Charles
Priolo, Vincent
McKibbin, Zachary
The TK Ripper was designed to pull a rider on a wakeboard up from a deep water start. We believe the force and power required to pull a rider on a wakeboard out of the water provides enough force and power for many other extreme sports.
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/42
https://digitalcommons.calpoly.edu/context/mesp/article/1049/viewcontent/TK_Ripper_Report_Final.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Winch
Wakeboard
Sports
Ripper
Applied Mechanics
oai:digitalcommons.calpoly.edu:mesp-1050
2010-11-10T16:10:07Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
SAE Baja: Final Drive Gearbox
McCausland, Michael
Watkins, Michael
Masterson, Ian
Sommer, Andrew
This paper presents the results of a manual transmission project for SAE Baja. A full engineering process is documented, including problem definition, scheduling, conceptualization, decision theory, synthesis, analysis, manufacturing, and testing. A comparison is made between existing and potential mechanical power train solutions. The final design is analyzed in dynamic simulations, AGMA stress, predicted FFT spectrums, and shifting rod buckling. A number of complicated parts are manufactured through investment casting and direct CNC machining. Issues in the final assembly have prevented the project from being fully realized, recommendations are made for future SAE Baja teams.
2010-09-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/43
https://digitalcommons.calpoly.edu/context/mesp/article/1050/viewcontent/SAE_Baja_Final_Drive_Gearbox.pdf
Mechanical Engineering
DigitalCommons@CalPoly
SAE
Baja
mechanical
transmission
gear
manual
Applied Mechanics
Computer-Aided Engineering and Design
Manufacturing
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1051
2010-12-09T23:34:31Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Universal Play Frame VI
Bazant, Justin
Crackel, Cullen
Franceschi, Anthony
This design report details the design process utilized by Adaptive Exercise Designs (AED) in creating the sixth design of the Universal Play Frame (UPF). The UPF is an adaptive frame which supports a variety of devices that allows athletes in wheelchairs with limited range of motion to participate in physical activity. The past five frame designs do not meet the needs of the Friday Club due to complications with function and time constraints. To ensure all of Fridays Club's needs were met, the problem was better defined by converting the customer requirements into engineering specifications. The design process our team followed was guided by the engineering specifications and is presented in detail in this report.
The final dimensions of the UPF VI that varied from the original anticipated design are summarized as follows. The UPF VI utilizes four 12’’ wheels instead of two wheels like the previous UPFs. The additional and larger wheels will improve the frame's ability to maneuver over different terrain. In the final design the frame weighs approximately 50 lbs. The frame is 40’’ wide (fixed width) to provide clearance for the user’s wheelchair and for the UPF wheels to rotate. The height adjusts between the range of 34’’ and 42’’ and has a maximum length of 74” in order to accommodate different height and length wheelchairs. The Cargo Buckle ratchet tie-down was selected as a new method of attachment in order to allow for a quick and easy connection of the UPF to the wheelchair. The UPF VI cost a total of $1,239.65, which includes an estimated $130.00 for a powder coat to improve the visual aesthetics of the UPF.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/44
https://digitalcommons.calpoly.edu/context/mesp/article/1051/viewcontent/AED___UPF_VI_Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
UPF
universal
play
frame
mechanical
engineering
Applied Mechanics
Computer-Aided Engineering and Design
Mechanical Engineering
Psychology of Movement
oai:digitalcommons.calpoly.edu:mesp-1052
2010-12-09T23:41:24Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
The Next Generation CubeSat: A Modular and Adaptable CubeSat Frame Design
Dolengewicz, James
Whipple, Lucas
Wong, Stephanie
The goal of this project is to develop an improved next-generation CubeSat structure for Cal Poly’s PolySat program. Notable achievements include significantly increased ease of access, design to optimize payload space, improved machinability, increased modularity and a platform which allows for easy integration of future payloads.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/46
https://digitalcommons.calpoly.edu/context/mesp/article/1052/viewcontent/HyperCube_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Space Vehicles
CubeSat
PolySat
Pico-satellites
Space Vehicles
oai:digitalcommons.calpoly.edu:mesp-1053
2010-12-09T23:56:25Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Robot Crawling Device and Tee Table
Trauman, Todd P
Colvin, Kyle M
Fantz, David Charles
As golf becomes a more frequently enjoyed activity, equipment manufacturers such as Hot Stix Golf require updated testing mechanisms to actively compete in their respective markets. One such testing device is a golfing robot nicknamed the “Iron Byron”. Two issues were asked to be addressed for the senior project. First, the robot was practically immobile unless taken apart and moved with a forklift. The request from Hot Stix was to mobilize the robot so that it could easily be transported with minimal use of external help. Secondly, the initial tee-table was both poorly-designed and missing altogether. The new tee-table needed to be vibration-isolated from the robot and able to accurately traverse and record position in three dimensions.
The designs for the project were entirely original and were based on a conglomeration of many ideas developed while researching existing technologies. After a Preliminary Design Review, a final design was selected and various modifications were made along the route to completion. The final design, its modifications, and the complete design process is described in detail in the following report.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/47
https://digitalcommons.calpoly.edu/context/mesp/article/1053/viewcontent/Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
golf
transverse
swing
mobilize
Computer-Aided Engineering and Design
oai:digitalcommons.calpoly.edu:mesp-1054
2011-01-20T19:01:06Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Piedras Blancas Clock Works
James, Andrew
Jupin, Andrew
Weber, Matt
In 1875, the Piedras Blancas Lighthouse was built to warn ships sailing the California coast of the hazards of the rocky shore. In 1949 a fierce storm damaged the top portion of the lighthouse and the eight ton cast iron and brass assembly had to be replaced by a much lighter piece that still served the purpose of warning oncoming vessels. The former top portion came to rest in downtown Cambria and is still there today, enclosed in a glass room to be observed by visitors and townspeople. Today, the Piedras Blancas Light station is cared for by the Bureau of Land Management (BLM). A staff of mostly volunteers gives frequent tours of the light station and surrounding environment. In an attempt to give the people on the tour a better understanding of how the original light tower operated, the BLM has asked the Cal Poly Mechanical Engineering Department to design and build a working, scaled down model of the original top portion of the light house. It is desired to have a model that will demonstrate the way the original was gravity powered and how the gears worked to spin the massive first order lens. A working model is necessary because currently, the only remembrance of the original structure is a few pictures in the bottom of the lighthouse. Although helpful, these pictures do not clearly indicate the way ships were deterred from the jagged coast line. Beacon Engineering has taken on the project, and plans to have a working model of the original top portion of the light tower by December of 2010.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/52
https://digitalcommons.calpoly.edu/context/mesp/article/1054/viewcontent/design_report_final_copy.pdf
Mechanical Engineering
DigitalCommons@CalPoly
manufature
design
solidworks
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1055
2010-12-10T00:56:48Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Automated Heart Valve Flow Testing
Johnson, Matthew Scott
Karasawa, Akane Sharon
Ulrich, Timothy Charles
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/48
https://digitalcommons.calpoly.edu/context/mesp/article/1055/viewcontent/Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1056
2011-01-20T19:04:31Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Foam Wars II
Advani, Sumant
Menon, Sivadas
Pieplow, Casey
The team producing Foam Wars II consists of three Mechanical Engineering students and five Kinesiology students (three the first two quarters and two the last quarter) at California Polytechnic State University, San Luis Obispo. The project is the second iteration of Foam Wars as a senior project at Cal Poly, sponsored by Dr. Kevin Taylor under the National Science Foundation grant. Persons with disabilities often feel limited when it comes to recreational activities and Foam Wars would provide them with an outlet to interact and engage themselves in a group setting. The game consists of various wheelchair attachments that would pit two teams of five players against each other, where the objective is to score points by launching foam balls into stationary targets placed around a typical regulation basketball court. The goal of the project is not only to improve upon the previous hardware, but to redesign and refresh the whole game to be more engaging and inclusive for its participants. This document will detail the rules of the game and follow the development of the necessary hardware to implement them.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/53
https://digitalcommons.calpoly.edu/context/mesp/article/1056/viewcontent/Foam_Wars_2_Report___Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
adaptive activity
kinesiology
NSF Grant
game
Kevin Taylor
wheelchair
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1057
2010-12-09T23:37:53Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Mobility Aid: A Dual Purpose Walker and Scooter
Blois, Zack
Choi, Robia
Dills, Kristin
The Mobility Aid project was proposed by Theresa Mortilla and Idee Shapiro. The goal of the project was to design and build a device that can quickly and easily transform between a mobility walker and an electric scooter to allow for more freedom of mobility. The inspiration for this project arose from the fact that Theresa suffers from multiple sclerosis in her legs and can only walk for about thirty minutes at a time until she gets too fatigued and must sit down and rest. This device would provide her with the ability to continue moving while giving her legs their needed rest.
While this was a very exciting and life-changing project, the project requirements presented many obstacles and design challenges to overcome. The device must be lightweight so that Theresa can push it easily as a walker, but it must be structural enough to support all of the forces while used as a scooter. It must also be simple and easy to use as Theresa will most likely be fatigued when she has to transform the device. These were just a few of the design considerations faced in this project.
After much research and many different design iterations, a final design was reached. It consists of a four-wheel device with an aluminum frame, has a rigid folding seat, and has interchangeable handlebars.
As expected, during the building phase there were many little flaws that slowed down construction. These provided unnecessary roadblocks but were overcome with collaboration between group members and assistance from outside sources.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/45
https://digitalcommons.calpoly.edu/context/mesp/article/1057/viewcontent/ChameleonCorp_FinalProjectReport_20101203_v03_CC.pdf
Mechanical Engineering
DigitalCommons@CalPoly
walker
scooter
mobility aid
Electro-Mechanical Systems
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1058
2010-12-13T20:05:36Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Cal Poly Rose Float Electric Vehicle
Slone, Jennifer
Sherrett, Jason
Pettas, Dionysios
Baldwin, Timothy
(1) Background:
The Cal Poly Rose Float is currently powered by a pair of V-8 internal combustion engines. This is the second project in a three phase effort to replace the existing drive engine with an electric motor powered by a DC bus. The main goal of this phase of the project is to get the motor selected in phase one spinning.
(2) Results:
Originally, the project involved programming a microcontroller to achieve motor control. The decision was made, early on, to approach this task in a different manner due to the team’s minimal background in programming and mechatronics. The team decided to purchase and implement a commercially available variable frequency drive to get the motor spinning, and to offer a more sophisticated level of control. After extensive research, planning, purchasing of required components, and connectivity considerations, sufficient motor control was achieved.
(3) Conclusion:
The selection of a variable frequency drive to gain motor control was successful, and the goals of phase 2 in the Cal Poly electric vehicle project were accomplished. The project is ready to enter the next phase which is to be completed by another team of students.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/50
https://digitalcommons.calpoly.edu/context/mesp/article/1058/viewcontent/Cal_Poly_Rose_Float_Electric_Vehicle.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Variable Frequency Drives
Rose Float
Electric Vehicle
Electro-Mechanical Systems
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1059
2010-12-15T17:24:10Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
A Study of Golf Club Head Kinematics near Impact
Murphy, Stephen James
Lavelle, David Wadsworth
Melancon, Kevin Philip
2010-11-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/51
https://digitalcommons.calpoly.edu/context/mesp/article/1059/viewcontent/A_Study_of_Golf_Club_Head_Kinematics_near_Impact.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Applied Mechanics
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1060
2010-12-13T20:00:15Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Water Well Drilling Rig Final Project Report
Wargnier, Alexander (Alex)
Jablonski, Thad
Schumacher, Coel
In this report, the improvements of a previously produced cable tool drilling rig are described. The purpose of the rig is to drill water wells for use in Africa in order to provide safe drinking water to many in need. An affordable, effective, and controllable rig is the design goal for this project. With the San Luis Obispo Rotary Club sponsoring the project the design team of WHole Engineering have made necessary design choices to manufacture the product. Actions performed include background research of existing drilling technologies, analysis of top concepts for the controlling mechanism, and selection for the final design. The drilling rig will be modified in many ways to increase control, safety, and provide adequate drilling capabilities. The final design will be operated by a hydraulic system, using chains and sprockets to transmit power to the necessary mechanisms, rather than the tension belts that were present when the design team was assigned to the project.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/49
https://digitalcommons.calpoly.edu/context/mesp/article/1060/viewcontent/WHole_Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Developing
Rotary
Lifewater
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1062
2011-03-01T18:30:02Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Equine Hoof Block
Murano, Aaron
Smith, Jason
2010-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/55
https://digitalcommons.calpoly.edu/context/mesp/article/1062/viewcontent/Senior_Project_Report_1_6_11.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Horse
lameness
strain gage
transducer
load cell
veterinarian
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1063
2011-03-01T18:27:55Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
The Quadricycle Hand and Foot Cycle
Chin, Marissa
Drennan, Parker
Nelson, Spencer
Reidy, Kevin
This report documents the design process from concept generation to manufacturing for a hand and foot powered cycle named the Quadricycle. The Quadricycle project is a joint effort at California Polytechnic State University in San Luis Obispo between the Mechanical Engineering and Kinesiology Departments. The project objectives are to design a portable cycle that can be powered by hands and feet simultaneously in order to provide recreation and rehabilitation for a person with a disability. This project is funded under a grant by the National Science Foundation (NSF).
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/54
https://digitalcommons.calpoly.edu/context/mesp/article/1063/viewcontent/Final_Design_Report_12_08_10_2.pdf
Mechanical Engineering
DigitalCommons@CalPoly
spinal cord injury
cycle
tricycle
recumbent
hand and foot
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1064
2011-05-06T00:43:43Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Adapted Recumbent Bike
Mundell, Kurtis
Tiemeier, Dane
Yakuma, Laura
Yu, Darius
The adapted recumbent project was to redesign a disabled veteran’s recumbent bicycle. The main areas of concern were the crank pedal, chain tension, braking and steering system, and ergonomics. Since the customer is an avid biker, this bike will be used often, so the design is based on the ease of repair and replacement. The crank system was redesigned to a lightweight, adjustable part with chain clearance and high strength. The chain tension was improved by replacing the existing single idler wheel/chain tube system with a dual idler wheel system. The dual idler has a titanium sprocket in one of the wheels and a smooth low friction surface for the other wheel. A rear mechanical disc brake was added with a locking brake lever. The locking brake was added to make it easier for the user to get in and out of the seat. A weld was made on the rear seat stay in order to place a bracket for the rear brake calipers. The front hydraulic brakes were replaced with two mechanical disc brakes with mechanical lines routed to a single dual pull lever. Additional custom seat padding was made specifically for this recumbent tricycle. Using closed cell foam in a nylon cover with sewn on straps, the new seat simply attaches to the existing seat for increased comfort. Total cost for the entire project was $1489.86. A cost breakdown for each specific system is provided in the report. Testing for all implemented systems was conducted and verified using the design specifications as stated in the report. All systems have passed specified design criteria.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/56
https://digitalcommons.calpoly.edu/context/mesp/article/1064/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Recumbent Bike
QL+
Adapt
Manufacturing
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1065
2011-05-09T17:21:20Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
ASME Human Powered Vehicle
Knaus, Benjamin
Basmadjian, Philip
Supat, Nick
Speed Solutions has been contracted to design and build a Human Powered Vehicle (HPV) frame and drivetrain for the Cal Poly HPV club to use in their 2011 race season. This project is being funded by the Cal Poly HPV club and their sponsors. The goal is to design, test and build a bicycle frame that the HPV club can attach to a fairing of their design. Primary design considerations will include speed, weight, cost, rider ergonomics, reliability and ease of repair. This vehicle will be used to compete in ASME’s Human Powered Vehicle Challenge (HPVC) series of races.
2010-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/57
https://digitalcommons.calpoly.edu/context/mesp/article/1065/viewcontent/ASME_Human_Powered_Vehicle.pdf
Mechanical Engineering
DigitalCommons@CalPoly
HPV
Bike
Human Powered Vehicle
Lazarus
ASME
Speed Solutions
Applied Mechanics
Manufacturing
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1066
2011-06-06T23:19:03Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Building Balls: Final Design Report, JumpSport Inc.
Johnson, Gary
Mangione, Rosalie
Rose, Steven (Steve)
JumpSport, a major trampoline company, has requested Cal Poly to design a custom play-structure consisting of large diameter balls with two types of connectors-long rod connections and very close connectors (for a ball-to-ball type connection). By the end of the project, appropriate testing will be carried out on the connections and a full-scale model will be constructed.
After an extensive design process, our team of three decided on a rod connection style for both the long and short connectors. These consist of a hook that latches into a loop protruding from the ball where the hook is attached by a power screw. The hook/power screw assembly is covered by a sleeve and plunger style cover assembly. The sleeve rides the threads of the power screw to tighten or loosen the fit of the plunger surface to the ball. Thus, the plunger acts to cover the hook while creating a suction to the ball so that the connection stays tight. For the short connector length is equal to approximately four inches so that adequate space is provided for a hand or foot to fit between the balls. The long connector is approximately four feet in length. This length is equal to the sum of one ball diameter and two short connectors so that at any time the created play-structure can be easily altered.
The prototypes will be produced by the team-Gary Johnson, Rosalie Mangione, and Steve Rose. The initial parts will be machined and an at home molding process will be used to replicate parts. Purchased parts in conjunction with these self-made parts will be assembled by the team.
Structural testing was conducted on both styles of connectors. The ball used to adequately measure the desired features are produced by Mondo. This Mondo product uses a plastic we intend to use except for a larger diameter. Testing on the Mondo products allows us to obtain the necessary test results without the need to produce a ball with the correct diameter. These tests include but are not limited to maximum weight capacity, tensile and shear tests on the loop alone, etc. This data was used to determine Young’s Modulus for the Mondo ball’s plastic. This information was useful in relating our calculated data to our tested data.
In the end, a full scale prototype was made and assembled using an alternative to the Mondo ball so as to meet the diameter requirements. The reason for a full scale prototype is to model the connection points also designed by the team. From this full scale prototype we learned that simply adhering loops to the balls is not an appropriate substitution because it cannot even handle the static loads of the structure simply supporting itself. However, this prototype did yield useful information about the ergonomic qualities of the structure. Connecting a ball that will be suspended in the air proved difficult for two adults and would be impossible for young children alone. Due to these problems, a decision cannot yet be made without further testing using more appropriate materials. However, as the project stands currently, it is not a viable product.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/58
https://digitalcommons.calpoly.edu/context/mesp/article/1066/viewcontent/Final_Library_Copy.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Building Balls
Play Structure
Inflatable
Customizable
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1067
2011-06-08T23:58:47Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
BevCool
Slette, Matthew (Matt)
Talyat, Ryan
Sybert, Camille
A consumer product for rapidly cooling canned and bottled beverages.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/59
https://digitalcommons.calpoly.edu/context/mesp/article/1067/viewcontent/BevCool.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Beverage
Cooler
Drink
Cold
Chiller
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1068
2011-06-20T21:23:21Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Solar Powered Oil Well Site
Hyland, Jonathan
Mastro, Matthew
Moore, Kyle
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/76
https://digitalcommons.calpoly.edu/context/mesp/article/1068/viewcontent/Solar_Powered_Oil_Well_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Oil Well
Solar
Santa Maria Pacific
Oil
Power
Energy Systems
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1070
2011-06-09T23:35:41Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Edwards Lifesciences: Automated Tooling
Olson, Jordan
Riggs, Colin
McHenry, Tim
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/61
https://digitalcommons.calpoly.edu/context/mesp/article/1070/viewcontent/Edwards_Lifesciences___Automated_Tooling.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1071
2011-06-20T21:28:17Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Competition Sit Ski Final Design Report
Martinez, Kyle
Clauson, Vinay
Woodward, Ben
This project consisted of designing and fabricating a competition sit ski for an above-knee double-amputee, Andy Soule. Andy is a talented athlete who won a bronze medal in the 2010 Winter Paralympics. The project was completed by VinayClauson, Kyle Martinez, and Ben Woodward, mechanical engineering seniors at California Polytechnic State University in San Luis Obispo, CA. The project advisor, Professor Sarah Harding, and sponsor Dr. Brian Self, of the Mechanical Engineering Department at Cal Poly, oversaw the project with the help of Jon Kreamelmeyer, a former coach of Andy's and a valuable source of knowledge. The sit ski project was funded by the National Science Foundation. We were also in contact with Andy since the ski was custom made for him. Our goal was to produce the lightest, most competitive sit ski to aid Andy in his quest to be the best. The stakeholders in this project were Brian Self, Jon Kreamelmeyer, Andy Soule, and the National Science Foundation.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/77
https://digitalcommons.calpoly.edu/context/mesp/article/1071/viewcontent/FINAL_REPORT.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Competition
Sit Ski
Paralympics
Applied Mechanics
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1072
2011-06-20T19:38:49Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Bias Automation
Centeio, Lucas
Lewis, Matt
Sinkovich, Heidi
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/74
https://digitalcommons.calpoly.edu/context/mesp/article/1072/viewcontent/Final_Senior_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1073
2011-06-20T21:32:57Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Power Steering Concept
Escobedo, Anthony N.
Flores, William Ryan
Haverstock, Russell
This senior project was created in conjunction with Edwards Lifesciences. This project was created under an non-disclosure agreement and will not be submitted to any outside sources. The submitted title page will act as proof of completion.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/79
https://digitalcommons.calpoly.edu/context/mesp/article/1073/viewcontent/Power_Steering_Concept.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Power Steering
Edwards Lifesciences
Electro-Mechanical Systems
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1074
2011-06-14T00:19:59Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Port Flow Test System
Chairez, Daniel
Crawford, Chelsea E.
Welch, Daniel S.
Solar Turbines Gas Compressor Engineering Division of San Diego, California called upon the Mechanical Engineering students of California Polytechnic University, San Luis Obispo to provide recommendations for optimization of compressor end cap port design. Various sizes of compressors have end caps with numerous ports that exchange fluids between the inside and outside of the working fluid pressure vessel. Because so many ports must exist on the end caps, unusual flow paths are created to supply the appropriate location within the compressor. These flow paths commonly consist of a drilled inlet hole which intersects with a sudden expansion. The sudden expansion is deemed the “fly cut” because of its semicircular shape.
Sudden expansions in general cause very high energy losses in fluid flow. This is one of the primary concerns when designing the compressor end cap port layout. Due to the unusual nature of the fly cuts found in Solar Turbines’ end caps, published information on the pressure losses for this particular flow path do not exist. For this reason, Solar Turbines were required to base their port design on the best information available, including: historical compressor design methods, conservative design analysis estimates, and computational fluid mechanics software. Of these options, the computational method could provide the best estimate but only if validated experimentally. In response to this problem, PreFlow Systems was formed and investigated the solution of designing, building, and testing a scaled experimental test apparatus.
This report outlines the details involved in every aspect of the project, including: technical specifications and objectives, design conceptualization, engineering analysis, manufacturing, testing, and results. Each of these phases was crucial in creating the final flow test apparatus which simulated the gas port flow of Solar Turbines’ compressor end caps. This apparatus ultimately provided an experimental basis for concluding that computation fluid mechanics software is a reasonable aide in end cap port design.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/64
https://digitalcommons.calpoly.edu/context/mesp/article/1074/viewcontent/PreFlowSystems_FinalReport.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Gas Compressor
Loss Coefficient
Fluid Mechanics
CFD
Port Flow
Solar Turbines
Aerodynamics and Fluid Mechanics
Computer-Aided Engineering and Design
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1075
2011-06-09T23:29:21Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Automated Mail Stacker
Atkinson, Robert (RJ)
Henning, Stephanie
Wetzel, Tyler
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/60
https://digitalcommons.calpoly.edu/context/mesp/article/1075/viewcontent/Cal_Poly_Post_Mail_Stacker_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Postmark
mail stacker
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1076
2011-06-14T00:25:19Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
BLDS Heating
Cook, Alan
Hsu, Jon
Veasey, Robert
Dr. Westphal, a professor at Cal Poly San Luis Obispo, created a boundary layer data system (BLDS). This device was designed to measure the boundary layer over a wing of an airplane during flight. A problem with the BLDS is that at flight altitude of 50,000 ft, the BLDS stops functioning due to the extremely low temperatures.
Team IcePick’s objective was to design, build, and test a device which could provide heat to the BLDS so it can function. Our team decided to continue with where the previous senior project team had left off and build upon their proof of concept design. Our sponsor, Dr. Westphal, allowed our team to explore two avenues for manufacturing the device: casting and machining. While casting our first prototype, our team learned this method was more suitable for more advanced casting processes which were not readily available to our team; this method of manufacture was abandoned before a final prototype was made. We were able to produce a working metal prototype using CNC machining. This prototype was then tested in the Cal Poly Wind Tunnel to investigate what the highest power output could be and to determine the resistance which produces max power output at design conditions. While our test results showed that our device produces less power then what we were aiming for, our team believes the device does produce enough power to allow the BLDS device to work in a wider temperature range than before.
The following report goes into detail explaining our team’s design and manufacturing process and the results gathered from our testing.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/65
https://digitalcommons.calpoly.edu/context/mesp/article/1076/viewcontent/Final_Report_LIB.pdf
Mechanical Engineering
DigitalCommons@CalPoly
micro ram air turbine
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1077
2012-07-09T23:19:10Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Final Design Report Portable Ultrasound Case
Hoose, Katie
Johnson, Tobe
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/78
https://digitalcommons.calpoly.edu/context/mesp/article/1077/viewcontent/MyLabONE_Final_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
oai:digitalcommons.calpoly.edu:mesp-1078
2011-06-21T15:13:16Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
3-D Terrain Mapping and Navigation Using a Laser Range Finder
Azevedo, Matthew L.
Parilla, Matthew
Parsons, Kevin K.
The purpose of this Senior Project is to develop and implement a three-dimensional mapping and navigation system utilizing laser technology on a robotic platform. The sponsor of this project, Synbotics® Incorporated, currently has an obstacle avoidance system only operating in a single horizontal plane. This limits the mapping and navigation ability of the robot because objects below and above this plane are not accounted for. A three-dimensional system is needed to allow the robot to better navigate and map an area by accounting for these objects in the third dimension and avoiding collisions. Keith Guy, Synbotics® Chief Executive Officer, requested that the system be able to autonomously navigate a boundary set terrain and create an accurate real-time three-dimensional map. This will enable the user to reference the created digital map, and direct the robot to an indicated position on the map. In addition, a secondary robot, using laser technology will be able to reference the previously created map in real-time to ensure the position and orientation of its location while determining the most efficient navigation route.
2011-02-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/63
https://digitalcommons.calpoly.edu/context/mesp/article/1078/viewcontent/Final_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
SLAM
Simultaneous
Localization
Mapping
Laser
3D
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1079
2011-06-14T00:29:44Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Flow Loop Simulator
Abruzzini, John
Carrasco, Manuel
Sutherland, Neil
Woolworth, Elise
PG&E’s Diablo Canyon Power Plant (DCPP) has requested an operational flow loop simulator to aid in operator/technician training. The flow loop simulator will provide hands-on training that the current plant training process cannot model. This project is a continuation from the 2009-2010 school year. Project scope and design requirements were gathered from the previous group’s design reports as well as meetings with PG&E. The goal of this year’s project team is to verify, enhance and implement the schematic diagram proposed by last year’s team.
The main focus of the flow loop simulator is to provide operators and technicians with hands-on training with components similar to those found throughout DCPP. Examples of training experiments will include heat transfer experiments, tank vortexing, tank level control, valve failure/calibration, and correcting a “soft foot” on an electric motor. The flow loop simulator will serve a dual purpose by providing training scenarios for both operators and technicians.
The main goals of this year’s design team are to complete the design and manufacturing of the flow loop simulator, design relevant training scenarios and provide clear documentation for future design teams.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/66
https://digitalcommons.calpoly.edu/context/mesp/article/1079/viewcontent/FLS2200_FinalProjectReport_Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
flow loop simulator
thermodynamics
pumps
valves
heat transfer
fluid mechanics
Energy Systems
oai:digitalcommons.calpoly.edu:mesp-1080
2011-06-14T00:05:48Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Marauder Marine: Spearfishing Float Design
Glen, Kevin
Lancaster, Kyle
Wickham, Andrew
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/62
https://digitalcommons.calpoly.edu/context/mesp/article/1080/viewcontent/Marauder_Marine_Final_Report__1_.pdf
Mechanical Engineering
DigitalCommons@CalPoly
spearfishing
buoyancy
floatation
piston
cylinder
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1081
2011-06-20T19:35:55Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Thrust-Vector Control
Larkin, Dane
Singh, Harsimran
Mission Statement
The purpose of this project is to design, build, and test a thrust-vectoring rocket nozzle which will aid in controlling the trajectory of a solid-booster rocket. The system prototype must meet the requirements set forth by the sponsoring enterprise.
The Enterprise
Stellar Exploration is a small space systems technology company located in San Luis Obispo, CA. Stellar Exploration is currently seeking a thrust-vectoring system for its Silver Sword rocket.
Project Scope
The design and analysis portion of this project accounted for a system that would be mounted on to a rocket for operational flight. Therefore, this team has taken into account the effects of heat, pressure, in-flight forces, etc. However, the building and testing phase of the project only sought to establish that the system can be satisfactorily actuated. Time and financial requirements did not allow this team to test the system design for all possible operational parameters such as heat, etc.
Therefore, the Appendices and all chapters preceding chapter 8 regard a prototype which must undergo operational conditions. A portion of chapter 8 and all of chapter 9 regard a prototype which only demonstrates actuation.
Personnel
The project was taken up by Cal Poly San Luis Obispo students Dane Larkin, and Harsimran Singh. Both are senior students who were less than a year away from graduation at the beginning of this project.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/73
https://digitalcommons.calpoly.edu/context/mesp/article/1081/viewcontent/FinalProjectReport_1_.pdf
Mechanical Engineering
DigitalCommons@CalPoly
thermal
expansion
actuators
thrust
vector
graphite
inconel
Applied Mechanics
Computer-Aided Engineering and Design
Electro-Mechanical Systems
Heat Transfer, Combustion
oai:digitalcommons.calpoly.edu:mesp-1083
2011-06-10T22:18:15Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Multiple Motors with Single Controller
Barbeiro, Jason Eugene
Johnson, Benjamin Erik
Garza, Abraham
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/69
https://digitalcommons.calpoly.edu/context/mesp/article/1083/viewcontent/Multiple_Motors_with_Single_Controller__Library_Cop_.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Acoustics, Dynamics, and Controls
oai:digitalcommons.calpoly.edu:mesp-1082
2011-06-20T19:16:06Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Automated Adaptive Feeding Device
Dolcini, John
Smith, Stephanie
Yakovlev, Pavel
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/68
https://digitalcommons.calpoly.edu/context/mesp/article/1082/viewcontent/Library_Report___Automated_Adaptive_Feeding_Device.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Feed
adapted
disabilities
spoon
bowl
actuator
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1084
2011-06-11T00:30:04Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Rapid Animatronic Target System
Bray, Brandon Keith
Guise, Matt Gerhardt
Quinn, Martin Thomas
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/70
https://digitalcommons.calpoly.edu/context/mesp/article/1084/viewcontent/rapid_animatronic_target_system.pdf
Mechanical Engineering
DigitalCommons@CalPoly
animatronic
synbotics
robotics
torso
target
gimbal
Electro-Mechanical Systems
oai:digitalcommons.calpoly.edu:mesp-1085
2011-06-14T15:42:12Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Olympic Bocce Ballers
Erickson, Steven
Haley, William
Vaughan, Taylor
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/67
https://digitalcommons.calpoly.edu/context/mesp/article/1085/viewcontent/Final_Senior_Project_Report__DONE__1.pdf
Mechanical Engineering
DigitalCommons@CalPoly
bocce ball
special olympics
design
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1086
2011-06-20T19:47:05Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Piedras Blancas Light Station Vista Point Improvement Plan
Heeren, Larissa
Juster, Reuben
Usher, Annamarie
Rossi, John
Mitchell, Nick
Piedras Blancas Light station Improvement Involved the design of two separate parking lot/vista point plans as well as the creation of a concrete Iron Ranger located near the gift shop on site.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/75
https://digitalcommons.calpoly.edu/context/mesp/article/1086/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Concrete
Civil Engineering
Other Mechanical Engineering
Structural Engineering
oai:digitalcommons.calpoly.edu:mesp-1087
2011-06-20T19:28:58Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Cal Poly Human Powered Helicopter
Auer, Josiah
Behne, Eric
Berry, Dave
Hennings, Rebecca
Koch, James
Marquardt, Ian
Mayfield, Josiah
Miller, Sean
The following report encompasses the Cal Poly Human Powered Helicopter team’s efforts during the 2010-2011 academic year. The intention of this project is to further the knowledge of human powered helicopter design and to validate an ideal configuration through experimental tests and analysis. A. Background
The Sikorsky Prize offered by the American Helicopter Society has been the catalyst for many attempts at Human Powered Helicopter (HPH) flight. The requirement to win the prize is a continuous, human powered flight of more than 60 seconds that stays within a 10 meter square box and reaches an altitude greater than 3 meters at some point during the flight. As of 2011, there have been over thirty different attempts. Most of these attempts have not flown or produced anything significant due to serious design issues, fabrication and execution problems, failure to record and publish information, or lack of funding, among other problems. In addition, a large number of the projects are no longer underway because of failure to fly. In fact, only three HPHs have ever achieved flight: the Da Vinci III constructed by students at California Polytechnic State University (Cal Poly), the Yuri I, constructed by students at Nihon University in Japan, and most recently the Gamera, constructed by students at the University of Maryland. All of these successes came after many years of experimentation and the combined efforts of numerous individuals. B. Design Considerations
Some of the main design challenges for human powered flight include maintaining a very low vehicle weight while achieving the highest power output from the limited energy that a human can produce. From previous research and experiments performed at Cal Poly, it was concluded that the limiting element in using human power is the body’s respiratory system -- the series of organs involved in re-oxygenating blood as it circulates the body. As with any engine, an athlete’s body can only perform within the limits of its respiratory system before reaching exhaustion. For example, simultaneous use of arms and legs to provide power to a helicopter is of little advantage if the body is already processing oxygen at a maximum rate. However, the phenomenon of ground effect is known to reduce the power required for hover during flight at very low altitudes. Unfortunately typical helicopter theory, especially related to low altitude hover, does not entirely apply to the HPH because rotor shape and operational RPM are so drastically different. The HPH relies on rotors that resemble rotating conventional aircraft wings with longer chord, greater camber and twist, and operate at much slower RPM than conventional helicopter rotors. Because the majority of publicly available data relates to traditional helicopter analysis, there is a considerable absence of published experimental data needed to make critical design decisions for an HPH. Therefore, the experiments performed by the Cal Poly HPH Team were done to simulate possible HPH rotor configurations and situations in order to better understand the dynamics of HPH flight. C. Ground Effect
In studying the past HPH designs, our team realized that the most obvious problem is overcoming the limitations of human power. The best attempt at fighting this was Naito’s Yuri I, a craft that utilized ground effect by running rotors very close to the ground. The success of the Yuri inspired us to study Dr. Naito’s research, and try to understand what made his helicopter so successful. After reviewing Dr. Naito’s research, we identified our areas of work. We came to understand ground effect (GE) as an increase in blade efficiency for rotors operated at less than one radius above the ground. The improved efficiency, or lift to drag ratio, is due to two things:
1. Reduced downward velocity of induced airflow, leading to:
a. Less induced drag and a more vertical lift vector
b. Decreased pitch angle and less power needed for hover
2. Reduced tip vortices, resulting in:
a. Improved efficiency of outboard portion of blade
b. Reduced system turbulence from ingestion of recirculating vortex swirls
As a result of low altitude hover, the downwash from the wing or rotor blade is deflected by the ground. This deflection reduces the vortices on the tips of the wings and rotors. Because these vortices cause a slight downward and backward drag force on the lifting surface, their depletion allows increases in lift. In a helicopter, this lift is being achieved by power applied to a rotor. Therefore, ground effect should theoretically allow for increased thrust (or lift) from the rotor without a corresponding increase in power input. Ground effect is especially noticeable in the HPHs that have actually flown. The Da Vinci III, Yuri I and Gamera were only able to fly in deep ground effect; in fact the Yuri and the Gamera rotors were only inches above the ground. The Da Vinci rotors were over four feet high, but the rotor length was very large. Ground effect’s influence on HPHs is undeniable, and better designs for HPHs can be achieved by understanding this phenomenon. In Figure 1 below, the in-ground-effect rotor on the left has smaller tip vortices and decreased pitch angle than the rotor out of ground effect seen on the right. The benefits of GE begin around one rotor radius above ground, and then increase exponentially the lower the rotors fly. To reap the greatest benefits, our HPH should fly as close to the ground as possible. D. Intermeshing Rotors
The Yuri I had four rotors, and was the most stable and successful flying HPH. However, the large structure needed to keep the four rotors from colliding with each other had to be made very, very light. This meant the structure was not very robust and collapsed after a minor impact between rotors. If the structure size requirements could be reduced, the remaining structure could be made much more robust and could withstand forces from a control system, without an increase in craft weight (compared to previously flown helicopters). In addition, if the rotors could be brought together, it would also decrease the amount of material in the drivetrain as well as reduce complexity and weight. To accomplish this, the rotor blades would have to intermesh or spin inside of each other like gears that do not touch, otherwise obvious disaster would occur. The question is then whether a drive train could be designed to ensure that the rotor blades don’t hit and if intermeshing rotors come with any thrust or instability penalties that would have to be considered before using them on a full size helicopter.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/71
https://digitalcommons.calpoly.edu/context/mesp/article/1087/viewcontent/HPHDesignDocument_Spring2011_Final.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1087/filename/0/type/additional/viewcontent/Carbon_Fiber_Tubing__S11_.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1087/filename/1/type/additional/viewcontent/CLTTubeDesign.m
https://digitalcommons.calpoly.edu/context/mesp/article/1087/filename/2/type/additional/viewcontent/Appendix_A_Composite_Spars__W11_.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1087/filename/3/type/additional/viewcontent/Appendix_B_Natural_Frequency_and_Ultimate_Loading_of_Composite_Spars.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Human Powered Helicopter
Carbon Fiber
Ground Effect
Intermeshing Rotor Blades
Sikorsky Prize
Da Vinci
Aeronautical Vehicles
Manufacturing
Other Aerospace Engineering
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1088
2011-06-20T19:32:28Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Pop-A-Wheelie Design Team
Hill, Mackenzie
Nguyen, Thuyen
Van't Hul, Shaun
The purpose of this report is to illustrate the Pop-a-Wheelie design team’s progression and implementation of a concept in regards to the project sponsored by Break the Barriers (BTB). The Pop-a-Wheelie design team was tasked to design two devices that will be attached onto wheelchairs. The devices should facilitate the independence of user’s ability to pop-a-wheelie and return to an upright position without any assistance. After a list of specifications was agreed upon, the design process initiated. All customer specifications are listed in Objectives section located in Chapter 1: Introduction. A complete engineering specification table can be found in the QFD chart, located in Appendix A: Design Concept Tables. Many concepts were generated to satisfy specifications; however, only one was chosen. The Swing Dancer is the best design concept that will sufficiently address the maximum number of specifications. Refer to the Discussion of Conceptual Designs section in Chapter 3: Design Development for more details on each concept. The justification for the Swing Dancer is located in the Specifications Satisfied by Top Concept section in Chapter 4: Description of the Final Design. In each case, the Swing Dancer either fulfilled the specifications fully or adequately. Detailed analysis was done to verify the loads on the device; the max load found is 11.25 lbs. per wheel. The safety factor determined is 25.6 and the max compressive load the support bars in Model #1 can withstand is 672 lbs without buckling. Detailed calculations and descriptions can be found in Appendix E: Detailed Supporting Analysis. A detailed list of components used in the design can be found under the Cost Analysis section also in Chapter 4: Description of the Final Design. From the test procedures performed on the attachment, the weight was calculated to be 10.0 lbs. and the cost of producing it is $489.28 while the second model was found to only weigh 7lbs and costing $113.89 due to using the extra material from the first model to build it. Based on all the information justified in this report, the recommended next step is to proceed with using the device in a real world situation. It is only then that our device can truly pass the ultimate test of helping the Barrier Breakers to spread their message of “inclusion” around the world.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/72
https://digitalcommons.calpoly.edu/context/mesp/article/1088/viewcontent/Pop_A_Wheelie_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
pop-a-wheelie
wheelchair attachment
manuverability
device for people with disabilities
Manufacturing
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1089
2011-07-13T22:48:05Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Adult Strider
Browning, Matthew
Flynn, Michael
Desfor, Douglas
Gentilucci, Mary
The goal of the Strider project was to create a mobility device that would support a person with weakened leg strength and allow them to push the device around with their legs and build more leg strength. There are many health benefits to standing and the Strider was intended to help a person with a disability experience these benefits. The Strider is a fully independent device that the user can get into and maneuver without assistance. The device is also safe, highly maneuverable, and complies with all ADA standards and requirements.
The design is built around a frame that supports the user. A lowered push-off bar allows the user to push out of his wheel chair and the frame supports the user’s weight. The user then uses the transfer seat to get into the device. The transfer seat locks in the downward position so the user can sit in it while getting into the harness. Once the harness is attached, the transfer seat can be unlocked and swung back out of the way and the torso support system then is closed. At this point the harness supports the majority of the user’s weight and the user can now move the device around with his legs.
Testing showed that a user can get into the device without help. However, the process is much more involved than originally believed, but with practice our user can learn how to transfer easily. The device moves very well for a person who is used to controlling their legs. However, for a person with less practice, accurately steering the Strider is a little trickier.
Overall, the Strider fulfills the goals of the project. The user can get into the device and maneuver it around. The device also gives the user a workout. Future projects that are similar might want to look for alternative wheels that can provide better traction on smooth surfaces. This is especially important when the user is getting into the device and the brakes are on. As of now, the device slips a little on smooth floors while the user is getting into it. Lastly, having more adjustable arm rests would be beneficial.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/80
https://digitalcommons.calpoly.edu/context/mesp/article/1089/viewcontent/FinalStriderPDF.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Rehabilition
Mobility
Adult
Leg
Suspend
Aid
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1090
2011-07-19T15:44:26Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Electro Mechanical Actuator Test Stand for In-Flight Experiments
Koopmans, Michael
Mattheis, Catlin
Lawrence, Austin
The Prognostic Center of Excellence at NASA Ames is currently researching actuator prognostics, specifically in the application of electro mechanical actuators (EMA’s). Cal Poly ME students Michael Koopmans and Catlin Mattheis and EE student Austin Lawrence have chosen to undertake the task of building a test stand that will be flown in flight while testing EMA’s specific faults. A stand was designed to fit inside a standard 19” rack, take power from the aircraft 3 EMA’s, a computer, data acquisition, and electric magnets switches are powered. A MIL STD 1553 interface is present to allow fault injection. Vibration and temperature data can be recorded during experiments. However, due to time constraints, not all tests were completed and the control system needs optimization. The stand is 90% complete and with a little more work the test stand should generate interesting and valuable data to compliment the Health Systems Management algorithms relating actuator faults and numerical relationships.
2009-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/81
https://digitalcommons.calpoly.edu/context/mesp/article/1090/viewcontent/mkoopmans_senior_report_2_.pdf
Mechanical Engineering
DigitalCommons@CalPoly
electro mechanical actuator
NASA
test stand
design
Electro-Mechanical Systems
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1091
2011-07-20T16:47:52Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Mustang Adaptive Nordic Sports Conceptual Design Report
Murrietta, Krystina
Silva, Tom
Thrift, Allen
Murray, Dan
Mustang Adaptive Nordic Sports has undertaken a recreational sit ski as a mechanical engineering senior project. The team consists of four seniors: Daniel Murray, Krystina Murrietta, Tom Silva, and Allen Thrift. The goal of this project was to design, build, and test an adjustable sit ski that is lightweight and accommodates different users. The first half of this project focused on researching past senior projects and existing designs, defining the need and specifications, brainstorming, designing, and analyzing the validity of the final design. The second half of this project required the acquiring materials, building the prototype and testing it. The design presented in this report accommodates two leg positions, legs-out and teacup, where legs-out is a separate attachment. Removable footrests were manufactured in order to vary the rider’s foot position for maximum comfort. The single binding system was modeled for NNN since it is the most common type of cross-country ski used. This design incorporated many of the benefits of the previous designs while minimizing the overall weight of the sit ski assembly. The main components of the design are the aluminum 6063 frame, the modular legs-out attachment, the single binding system, and the large bucket seat. All manufactured components met assessment calculations in stress and deflection.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/82
https://digitalcommons.calpoly.edu/context/mesp/article/1091/viewcontent/RecSitSkiFinal.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Sit Ski
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1093
2011-08-01T18:08:46Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Rock-N-Bowler II
Grip, Josh
Rodrigues, Travis
Rozporka, Richard
The report of the creation of an adaptive bowling device designed for people in powered wheelchairs. The basic design is a ramp that attaches to the wheelchair and has the ability to add spin to the ball to allow the user to hook the ball.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/83
https://digitalcommons.calpoly.edu/context/mesp/article/1093/viewcontent/Rock_N_Bowler_2_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Bowling
Least Restrictive Environment
Biomechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1094
2011-10-18T18:16:58Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Low-Cost Prosthetic Leg for the Vida Nueva Prosthesis Clinic
Baker, Sarah M
Lekos, Justin G
Van Donk, Jen
Yamauchi, Kevin
The Piernas de Vida team partnered with the Vida Nueva Clinic of Prostheses and Orthoses in Choluteca, Honduras to design, plan, and implement a prosthetic foot that could be manufactured entirely by the technicians at the clinic in order to reduce their costs and ultimately allow them to serve more patients each year. Currently, the clinic uses a prefabricated prosthetic lower limb provided by the International Committee of the Red Cross (ICRC) which can be adapted to both transDfemoral and transDtibial patients. The team has successfully developed a foot, currently called the Layer Foot, which can be used by the clinic and reduces the expense to purchase a prosthetic foot by more than half. The foot has a simple geometry, which allows for ease of manufacturing, and is made of Delrin, a self-lubricating thermoplastic which is very easy to machine. Multiple iterations have been carried out based on results from both static testing and patient gait analysis, however further testing including cyclic fatigue testing will be necessary for the Layer Foot to compete as a viable product. Future Cal Poly design teams will be assigned the task of carrying out further iterations and developing more advanced testing methods in order to validate the durability and overall design of the product.
2011-01-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/85
https://digitalcommons.calpoly.edu/context/mesp/article/1094/viewcontent/PdV_Final_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
prostheses
developing world
prosthetic foot
Biomechanical Engineering
Orthotics and Prosthetics
oai:digitalcommons.calpoly.edu:mesp-1095
2011-09-28T16:07:56Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Autonomous Crash Avoidance System
Ujiie, Brian
Woods, Gordon
Miller, Joshua
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/84
https://digitalcommons.calpoly.edu/context/mesp/article/1095/viewcontent/AutonomousCrashAvoidanceFinalReport.pdf
Mechanical Engineering
DigitalCommons@CalPoly
autonomous
crash avoidance
rc truck
dspic
xiphos
Controls and Control Theory
Robotics
oai:digitalcommons.calpoly.edu:mesp-1096
2012-08-06T19:06:05Z
publication:research
publication:bmedsp
publication:students
publication:seniorprojects
publication:mesp
Access|Closure Balloon Catheter Redesign Project
Bamburg, Keenan
Castillo, Yvette
Eskildsen, Elizabeth
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/128
https://digitalcommons.calpoly.edu/context/mesp/article/1096/viewcontent/FinalProjectReport_Library.pdf
Mechanical Engineering
DigitalCommons@CalPoly
medical
device
mechanical
AccessClosure
catheter
Applied Mechanics
Biomechanical Engineering
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1097
2011-12-06T23:08:21Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Engineering on the Rose Float: Final Project Report
Boles, Stephen
Dong, Garrett
Hoonhout, Peter
The purpose of this project is to design the simple mechanical movement systems of the 2012 Cal Poly Tournament of Roses Float Parade to prevent failure. Three mechanisms were designed. One of the mechanisms is a tall building that has a superhero and helicopter rotating around the top; it also has the ability to rotate the top 2/3rds of the mechanism to a 90 degree angle to fit under a 16.5 foot bridge. Another mechanism is the cars that look like they are driving on the pod’s road surface via train tracks underneath the surface. The cars will travel at different speeds on the track via varying voltages and have a control system to stop in certain places on the track to simulate reality. The falling building has a superhero attached making it look like he is catching the falling building and pushing it back up. The falling building breaks in two places, one at the base so that it drops into the pod and also towards the top of the building.
2011-11-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/86
https://digitalcommons.calpoly.edu/context/mesp/article/1097/viewcontent/Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Rose Float
Simple Mechanisms
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1098
2011-12-08T00:08:55Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Raytheon UAV Launcher
Amonn, Chad
Chin, Spencer
Deuitch, Alexander (Alex)
Jastrzebski, Mark
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/88
https://digitalcommons.calpoly.edu/context/mesp/article/1098/viewcontent/auto_convert.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1099
2012-01-11T01:02:58Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Ergonomic Lifter
Banihashemi, Bejan Brian
Schockemoehl, Dylan James
Ouellet, Andrew
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/98
https://digitalcommons.calpoly.edu/context/mesp/article/1099/viewcontent/Lifter_Library.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1099/filename/0/type/additional/viewcontent/Memo_Confidentiality.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Lifter
Axsys
Camera
Manufacturing
Stabilized
Ergonomic
Manufacturing
oai:digitalcommons.calpoly.edu:mesp-1100
2011-12-09T00:56:57Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Wireless Solar-Powered Thermal Imaging Camera
Bonk, Andy
McVicker, Billy
Richardson, Jacob
Creation of a mounted wireless self-powered thermal imaging camera system.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/90
https://digitalcommons.calpoly.edu/context/mesp/article/1100/viewcontent/Design_Report_review_removed.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Digital Communications and Networking
Energy Systems
Manufacturing
Other Computer Engineering
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1101
2011-12-09T01:03:11Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
HPV 20" Composite Disc Wheel Design and Production Senior Project
Abraham, Stephen
Pearson, Jack
Carpenter, Chad
This project report will serve to describe the goals, objectives, and overall process of the Cal Poly Mechanical Engineering senior project team, PolyWheel, in the design and fabrication of a complete set of 20” composite disc wheels for use on a high-efficiency human powered vehicle (HPV). The project will include the manufacturing of durable and reusable molds to build the wheels in order for multiple wheel sets to be made in the future. The wheels will be designed and built to be compatible with the Cal Poly HPV Team’s 2012 race bike and by other streamlined recumbent bicycles requiring a 20” wheel. The wheels need to optimize weight, rigidity, crash survivability, and aerodynamics. Design requirements for the wheel sets are being provided by the Cal Poly HPV Team and George Leone. Funding for the materials is being provided by John Neilson.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/92
https://digitalcommons.calpoly.edu/context/mesp/article/1101/viewcontent/PolyWheel_Final_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
HPV
Wheel
Disc
Carbon Fiber
Mold
oai:digitalcommons.calpoly.edu:mesp-1102
2011-12-09T00:59:04Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Challenger J Hockey Prosthesis Final Design Report
Bakker, Ryan
Noe, Spencer
Perkins, Christopher
The content of this report is withheld as confidential. QL+ is the owner of the intellectual property created throughout the duration of this project. Dr. Tom Mase (mechanical engineering) maintains a full copy of the report and intends to disseminate it upon completion of the necessary intellectual property protection measures.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/91
https://digitalcommons.calpoly.edu/context/mesp/article/1102/viewcontent/TeamEdgeAssist_FinalDesignReport_Confidential.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Prosthetic
Hockey Leg
Hockey
Transtibial. Amputee
Biomechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1104
2011-12-09T01:06:29Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Engine Simulation and Diagnostic Test Bed: Final Design Report
Lewis, Jeff
Scott, Cody
Smith, Todd
The San Luis Obispo High School Automotive Technology Shop has a 1991 Buick V-6 Engine which uses the OBD-I (On-Board Diagnostics, generation one) standard for diagnostic testing and troubleshooting. In order to expand the capabilities of the Automotive Technology program and allow students to gain first-hand experience troubleshooting older OBD-I engines, the shop has a need for this engine to become part of a diagnostic and troubleshooting test bed. Some of the diagnostic tests the students will perform include checking cylinder pressure, monitoring coolant system temperatures, interpreting error codes from the OBD-I system, and conducting enhanced smog testing. All of these tests can be performed without modification to the engine except for the enhanced smog testing, which requires the addition of a separate system to place a load on the engine. The project was proposed by Jeff Lehmkuhl, the San Luis Obispo High School Automotive Shop Instructor. The project was primarily funded by the San Luis Obispo High School Automotive Technology Shop and the Mechanical Engineering Department at Cal Poly. Additional individual monetary and material donations also helped make the project possible. A list of supporting sponsors can be found in Appendix A. The students who use the shop will ultimately benefit from the additional training and experience this tool will offer as part of the Automotive Technology Program. The goal of the project is to mount this engine in a self-contained, movable test bed to facilitate diagnostic testing and troubleshooting of real-world problems on an OBD-I based system.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/93
https://digitalcommons.calpoly.edu/context/mesp/article/1104/viewcontent/Final_Project_Report_FINAL_ALL_Lib.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Engine
Diagnostic
Dynamometer
Test Stand
Test Bed
Heat Transfer, Combustion
Other Mechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1105
2011-12-08T00:04:11Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Rayleigh Test Apparatus Design Report
Duller, Josef
Raybould, Owen
Nicovich, James
The Rayleigh Test Apparatus is a device that will be used to test the thermodynamic properties of Nitrous Oxide to assess the feasibility of using this fluid as a coolant for a hybrid rocket aero spike. The aero spike is intended to redirect the propulsion flow as it leaves the engine to create a more efficient flow pattern at low and high altitudes. However, there are issues of overheating which leads to melting of the aero spike. For this reason, the use of nitrous oxide (N2O) as a coolant is being explored. N20 is being considered because it is already present as an oxidizer in many hybrid rockets. By redirecting the N2O through the inside of the aero spike it will cool the aero spike and then be used as the oxidizer in propulsion. Since there is currently little information on the thermodynamic properties of N2O, it is essential to know the possible outcomes of using this fluid as a coolant. N2O decomposes exothermically releasing, pound for pound, twice the energy as TNT; this characteristic is obviously not favorable inside a cooling system. By knowing the heat transfer coefficient of N2O, it can be ensured that decomposition of the N2O does not occur inside the aero spike. This achieved by choosing a proper flow rate of N2O to avoid decomposition while maximizing the amount of thermal energy removed from the aero spike.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/87
https://digitalcommons.calpoly.edu/context/mesp/article/1105/viewcontent/Rayleigh_Test_Apparatus_Design_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Rayleigh
Nitrous Oxide
straight tube
N2O
Rocket
coolant
Aerodynamics and Fluid Mechanics
Complex Fluids
Heat Transfer, Combustion
Thermodynamics
Tribology
oai:digitalcommons.calpoly.edu:mesp-1106
2011-12-09T00:55:05Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Boom Stability Control Final Project Report
Barnes, Michael
Carnahan, Justin
Fluitt, Daniel
Johnstone, Alicia
The BOOMStiC Gravity Gradient Boom and Turnstile Antenna project was developed to provide a passive attitude control system and better communications for future CubeSat satellites developed by California Polytechnic State University. The system utilizes the energy from a coilable metal spring to deploy a tip mass to a length of one meter from the side of the satellite. Calculations show the resulting gravity gradient torque causes to the satellite to settle two degrees from normal to the earth’s surface.
2011-06-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/89
https://digitalcommons.calpoly.edu/context/mesp/article/1106/viewcontent/FinalProjectReport.pdf
Mechanical Engineering
DigitalCommons@CalPoly
CubeSat
PolySat
attitude control
satellite
Navigation, Guidance, Control and Dynamics
oai:digitalcommons.calpoly.edu:mesp-1107
2012-06-28T17:20:34Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
WiiHopp
Christian, Jeff
Hoselton, Ben
Simon, Derek
Childhood obesity is becoming a growing problem in the United States. According to the CDC, childhood obesity has more than tripled in the past 30 years [7]. It can lead to health problems previously reserved for adults, such as diabetes, high blood pressure, and high cholesterol. For the team WiiHopp project, we plan to turn a JumpSport mini-trampoline into a controller for the Nintendo Wii console. The hope is to help turn the problem of video games and the laziness surrounding them into an active solution to combat the problem of childhood obesity.
Our goal is to produce an add-on device for a mini-trampoline capable of interfacing with a gaming console. The device should be able to recognize typical trampoline motions, such as bouncing, stepping, and running along with bounce frequency and height. This will be done by integrating a series of sensors designing to interpret these motions. The device will then produce an output recognizable by the gaming system, thus allowing the user to use their trampoline to play their video games.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/118
https://digitalcommons.calpoly.edu/context/mesp/article/1107/viewcontent/ME430___WiiHopp_Final_Design_Paper.pdf
https://digitalcommons.calpoly.edu/context/mesp/article/1107/filename/0/type/additional/viewcontent/ME430___Test_Results__all_.xlsx
Mechanical Engineering
DigitalCommons@CalPoly
Trampoline
wiihopp
video game
console
Nintendo Wii
fun
Electrical and Computer Engineering
Other Mechanical Engineering
Sports Sciences
oai:digitalcommons.calpoly.edu:mesp-1108
2012-01-10T23:33:34Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Golf Prosthesis Final Design Report
Barcus, Joseph
Wilson, Lauren
Satcher, Ryan
A prosthetic attachment designed to allow an upper extremity bilateral amputee to golf.
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/96
https://digitalcommons.calpoly.edu/context/mesp/article/1108/viewcontent/FDR_Fall_Quarter.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Golf Prosthetic
Bilateral Amputee
QL+
Biomechanical Engineering
oai:digitalcommons.calpoly.edu:mesp-1109
2012-01-10T23:20:49Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Analysis of 26" and 29" Wheel Mountain Bikes
Publicover, Jacob
Wang, David
Warring, Alex
There are two major mountain bike diameter wheel sizes on the market today, but with two different options, one would naturally wonder, “Which one is best?” During the course of this project, 26 and 29 inch wheel mountain bikes were analyzed quantitatively and qualitatively, using a variety of test methods, from heart rate monitoring to serial data acquisition to computer simulated analyses; static, dynamic, theoretical, and subjective tests were administered.
2011-11-01T07:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/94
https://digitalcommons.calpoly.edu/context/mesp/article/1109/viewcontent/seniorproject.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Biomedical Engineering and Bioengineering
oai:digitalcommons.calpoly.edu:mesp-1110
2012-01-10T23:28:00Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Robotic Turret
Romero, Daniel
Martelle, Matthew (Matt)
Mullens, Scott
Diamant, Rachel
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/95
https://digitalcommons.calpoly.edu/context/mesp/article/1110/viewcontent/Robotic_Turret_Project_Report.pdf
Mechanical Engineering
DigitalCommons@CalPoly
turret
aim
target
tracking
Acoustics, Dynamics, and Controls
Electro-Mechanical Systems
Robotics
oai:digitalcommons.calpoly.edu:mesp-1111
2012-07-02T15:27:16Z
publication:research
publication:students
publication:seniorprojects
publication:mesp
Historic Calculator Project
Harris, Will
Marioni, Dan
Webb, Kevin
Williams, Chad
The Deutsches Museum of Munich, Germany requested add-on components to their mechanical calculator exhibit. The end-goal is to produce an interactive 3D model in software to demonstrate the functions of the Braun-Vayringe Machine (BVM). There will be four students working on this project at California Polytechnic State University, San Luis Obispo: two mechanical engineers (Dan Marioni and Will Harris) and two computer engineers (Chad Williams and Kevin Webb).This project involves the coordination of three facilities; the Deutsches Museum, and the Mechanical and Computer Science Departments of Cal Poly. The name of the project is known as the Historic Calculator Project (HCP), because of the coordinated effort to revisit a piece of history using modern day technology. The following report explains the project from two perspectives, therefore each section is divided into two parts: Mechanical Engineers (ME SIDE) and Computer Engineers (CPE SIDE).
2011-12-01T08:00:00Z
text
application/pdf
https://digitalcommons.calpoly.edu/mesp/119
https://digitalcommons.calpoly.edu/context/mesp/article/1111/viewcontent/Marioni.pdf
Mechanical Engineering
DigitalCommons@CalPoly
Deutsches
Museum
Braun
Vayringe
Calculator
Mechanical
Historic
Leupold
Computer-Aided Engineering and Design
Other Computer Engineering
889333/oai_dc/100//