pdr detailed slides charger rocket works university of alabama in huntsville nasa student launch...
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![Page 1: PDR DETAILED SLIDES Charger Rocket Works University of Alabama in Huntsville NASA Student Launch 2013-14 Kenneth LeBlanc (Project Lead) Brian Roy (Safety](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649e235503460f94b104bd/html5/thumbnails/1.jpg)
PDR DETAILED SLIDES
Charger Rocket Works
University of Alabama in Huntsville
NASA Student Launch 2013-14
Kenneth LeBlanc (Project Lead)Brian Roy (Safety Officer)Chris Spalding (Design Lead)Chad O’Brien (Analysis Lead)Wesley Cobb (Payload Lead)
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Launch Plans• Organizations
• Huntsville Area Rocketry Association (HARA) with Field in Manchester, TN or Bragg Farms, Toney, AL
• Phoenix Missile Works with Field in Childersburg, AL
• Subscale/Component Tests• February 8-9: Childersburg, AL• March 8-9: Childersburg, AL• March 8: Manchester, TN
• Full Scale Tests• March 16: Bragg Farms, Toney, AL• April 5-6: Childersburg, AL• April 13: Manchester, TN• April 20-21: Bragg Farms, Toney, AL
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Supersonic Design Considerations• Superheated Skin• Aerodynamic Forces• Rigidity
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Subscale Plans
• Modified ARCAS kit with Nose Cone Profile• Level 2 Motors• Simulate high G loading• Test Sensors
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Motor• CTI M4770• Complex Motor Assembly
• Separate Glue/Epoxy• Time Dependent
• Jason Winningham will assemble
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Launch Rail• Rail Buttons
• 1”• Locations
• Lower Button – Approximately Fin’s mid chord.• Top button – 24 inches above lower
• Rail• 8ft• 1in
• Rail Exit Speed – 131ft/s
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Descent
Event Value UnitsDrogue Release 26 seconds
High Altitude Descent Speed 100 ft/sMain Release 1000 ft
Low Altitude Descent Speed 7 ft/sImpact Energy Bottom Section 15.9 lbf
Impact Energy Nose Cone 0.83 lbf
176 176.5 177 177.5 178-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
900
920
940
960
980
1000
1020
1040
1060
1080
1100
Descent
Velocity
Altitude
Time (sec)
Vel
oci
ty (
ft/s
)
Alt
itu
de
(ft)
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Drift
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High G Considerations• Materials
• 3-D printed material brittle• 6061 Al used at critical interface points
• Sensors• Subscale ARCAS test launches with similar conditions• Inspect parts for damage• Check for usable data
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Payload Bay• Build envelope
• Size defined by subscale Nanolaunch dimensions• Preliminary designs allow for some size increase• Dielectrophoresis improvements, no significant volume increase
• Payload at or Close to CG• Dielectrophoresis• Part of Nanolaunch
• Forward payload• Radio and tracking• Additional Nanolaunch Payload
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CRW Safety Plan• MSDSs, SOPs, and State and Federal regulations.• SOP reviews. • CPR/ AED training.• Facility usage policies.
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Parachute Design References• FAA Rigger Handbook (344pages)• The Parachute Recovery Systems Design Manual (T.W.
Knacke). (~730 pages)• Two Parachute manuals on hardware, materials, sewing,
equipment, etc…
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Dielectrophoresis
• Problems• Cryogenic boil off – Muratov (2011)
• Loss of useable propellant • Vapor bubbles develop
• Liquid collection for engine restart – Blackmon (1965)
• Solution• Non-Mechanical fluid manipulation device
• Consolidate fuel away from tank walls to reduce heat transfer• Easily collect fluid at key locations while reducing dangerous
vapor regions
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What is Dielectrophoresis?•Gradient : [∂/∂x, ∂/∂y,∂/∂z]•Polarity Independence
2: Blackmon, James. Collection of Liquid Propellants in Zero Gravity with Electric Fields. Journal of Spacecraft and Rockets, Vol. 2, No. 3, 1965. p 3.
Uniform Electric Field
Non-Uniform Electric Field
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Experiment Fluids
• Experiment fluids with comparable dielectric constants to common fuels
• Common fluids for comparison of dielectric constants
• Peanut oil chosen• Highest dielectric constant of
experimental fluids• Theoretically most responsive to
dielectrophoretic force
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Mass Statement
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Supporting Personnel• Dr. Robert Frederick
• PRC Director• UAH Faculty for past 20
years• Propellants and Energetics• USLI Academic Advisor
• Dr. David Lineberry • PRC Research Scientist • 10 Years of Experience• NAR / TRA (Level) 1• NSL Course Instructor
• Tony Hall• PRC Test Engineer• 10 Years of Experience
• Jason Winningham• NAR/TRA Level 2 • HARA Member• UAH Employee• Previous NASA Rocketry
Workshop Leader• Amit Patel
• PRC GRA• HARA Member• 2012-13 CRW Project
Manger• NRA / TRA Level 1• Current Team Member