CubeSat DeOrbit System TREVOR JACKSON JOSHUA BARHAM TROY TARNACKI JOSEPH MCNAMARA TIMOTHY LYNCH JOE...

CubeSat DeOrbit SystemTREVOR JACKSON JOSHUA BARHAM TROY TARNACKIJOSEPH MCNAMARA TIMOTHY LYNCH JOE POWELL AMANDA SOKOLSKY MACKENZIE WEBB

System Functionality Overview

Stowed Deploying Deorbiting

Wireless

ELECTRONICS

• Software

• Iterative Design

• Circuit Board Fabrication

• Testing

Cutting Wire Testing

MATERIALS & METHODS

• Energy loss into baseplate

• Kapton and graphite thermal gasket ineffective

• Non-Conductive, high temperature insulators

Film

MATERIALS AND CONSIDERATION

• Mylar film

• No longer pressurized

• Vacuum Testing

Inflatable

• 5 mil Polyethylene Mylar

• Mylar inflatable subjected to 100 millitorr pressure.

• Vacuum packed test balloon successfully folded in baseplate.

• Two Sphere designs – Gore (Orange Slices) and Soccer Ball Pattern.

MATERIALS AND DESIGN

Tether/Alternate Baseplate

• SMA Latch

• Spring loaded door

• Four point tether

• Spring assisted deployment

Thermal Analysis

• Extensive orbit based thermal calculations ready for verification at NASA Langley Research Center

• Conclusive evidence of successful sublimation of benzoic acid

• Systems Tool Kit (STK) will also assist orbit thermal model

Alternative Heating

TITLE

• Assuming solar heating will not sublimate the benzoic acid

• Using a E-6 heating element to help start the sublimating process

Benzoic Acid

APPLICATION METHODS

• NASA• Acetamide w/ melamine dye• Benzoic Acid w/ melamine dye• Pyrazole w/ melamine dye

• ODU• Benzoic Acid• Not worried about sublimation rate

• Apply it within the balloon• Keep the acid within the balloon during

vacuum testing• Even coating

Vacuum testing at NASA Langley Research Center

System Iterations

Process Chart

Questions?