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