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

Date

6-2020

Primary Advisor

Eltahry Elghandour, College of Engineering, Mechanical Engineering Department

Additional Advisors

Kodi Rider, UC Berkeley, Space Sciences Laboratory

Abstract/Summary

This document details the work to date, June 9, 2020, done by the Cal Poly Mechanical Engineering senior project team, Miniaturized Ultraviolet Imager: Phase III (MUVI III), sponsored by the University of California, Berkeley – Space Sciences Laboratory (UCB SSL). MUVI III is the third senior project team of an ongoing design, MUVI: the prototype of a 2U sized CubeSat intended to capture aurora images in the ionosphere. The first team, MUVI I, finished development of the UV imager. The second team, MUVI II, designed the mirror mounting and deployable door mechanisms. The goal of MUVI phase III is to design, manufacture, and test MUVI’s 2U sized instrumentation frame, Photek UV camera mounting flexure, and ground support test fixture modeled after a P-POD. The instrumentation frame serves as an optical alignment datum, provides structural integrity, and dampens vibrations for the satellite. The instrumentation frame must survive launch and the thermal vacuum of space, have minimal mass, and comply with budgetary needs. Furthermore, the instrumentation frame shall fulfill the 2U size specification as detailed by CubeSat. Using FEA (Finite Element Analysis), the effects of vibrational loads will be modeled and accounted for. During launch, the instruments within the frame will face dynamic motion, risking failure of electronics, mechanical yielding, and overall mission demise. Boundary conditions will be replicated on ground by mimicking the mass of the Photek on the mounting flexure and by inserting the instrumentation frame into a replica P-Pod (Poly-Picosatellite) OGODS (On Ground Orbital Deployer Simulator) before beginning vibration testing. Once modeling has provided adequate confidence in the design, UCB SSL will manufacture the designed prototype components, and the assembled prototype will undergo vibration testing at Cal Poly. Ultimately, the mission of this project is to qualify the MUVI instrumentation frame for a TRL 6 rating from NASA. The main body of this document includes an introduction to the project, background information, project objectives, preliminary research and documentation, initial design ideas and concepts, final design, manufacturing plans, design verification plans, sponsor wants and needs, details about project management, Quality Function Development (QFD), and a project Gantt chart.

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