College - Author 1
College of Engineering
Department - Author 1
Mechanical Engineering Department
Degree Name - Author 1
BS in Mechanical Engineering
College - Author 2
College of Engineering
Department - Author 2
Mechanical Engineering Department
Degree - Author 2
BS in Mechanical Engineering
College - Author 3
College of Engineering
Department - Author 3
Mechanical Engineering Department
Degree - Author 3
BS in Mechanical Engineering
College - Author 4
College of Engineering
Department - Author 4
Mechanical Engineering Department
Degree - Author 4
BS in Mechanical Engineering
Date
6-2020
Primary Advisor
Sarah T. Harding, College of Engineering, Mechanical Engineering Department
Abstract/Summary
This Final Design Review document describes the senior design project carried out by a team of four mechanical engineering students from California Polytechnic State University, San Luis Obispo in conjunction with California Children’s Services for Savannah, a student at San Luis Obispo High School. The purpose of the project is to design an adaptive vehicle for Savannah that serves as a form of exercise and can be easily operated by her with little to no outside assistance. Background into Savannah’s condition is provided as well as previous designs of similar adaptive tricycles, document standards and specifications which constrain design solutions, outline the scope of the project as well as the needs and wants of the end user as understood by the team, and develop a path towards the final design through description of the design process. The final design described in this document is centered around the user’s strongest muscle group (her abdomen and back muscles) to provide all necessary tricycle functions. These functions include steering, powering and braking. In general, the steering mechanism will utilize bevel gears to actuate the front wheel of the tricycle, the powering system will be a ratcheting push bar that is harnessed to the user’s torso, and the braking system will be a brake pad on the front wheel that is engaged by leaning back in the seat. This document contains our team’s process for developing our final design, solid model of our final design, justification calculations, manufacturing plans and engineering drawings, and our schedule for completion of the final product. In addition, a summary of the effects of the COVID-19 pandemic on project completion is provided, including an outline of future documentation which will aid an outside party in development and completion of our intended design, as well as the team’s revised project direction and scope.
URL: https://digitalcommons.calpoly.edu/mesp/534