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Preliminary Design Review. NASA University Student Launch Initiative University of Nebraska–Lincoln 2012-2013. Team Overview. Mission Build a launch vehicle to reach an 5,280 feet altitude Use a dual-deployment recovery system Deploy a payload at 1,500 feet
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Preliminary Design Review NASA University Student Launch Initiative University of Nebraska–Lincoln 2012-2013
Team Overview • Mission • Build a launch vehicle to reach an 5,280 feet altitude • Use a dual-deployment recovery system • Deploy a payload at 1,500 feet • Recover all components in a relaunchable condition
Kinetic Energy Landing Velocity Terminal Velocity Ejection Charge is set for 1500ft Ejection Charge is set for 1000ft
Stability Characteristics • OpenRocket Model • Will need to be verified • Mass (with motor): 35.9 lbs • CG: 66.9 inches • CP: 77 inches
Launch Characteristics • Candidate Motors • 75mm diameter • Aerotech L1520T-P • Simulation Parameters • 10 foot guide rail • Rail velocity: 43.32 feet/sec • Thrust-to-weight ratio: 10.72
Nosecone • Characteristics • Von Kármán (LD-Haack) • 5.5:1 Fineness • Communications • BRB 900 GPS Transmitter • Antenna
Transition Assembly • Components • 2 6-inch bulkheads • One small step for man • One 6-inch diameter polycarbonate plate • One GoPro camera • Two eyebolts • Material • Alumium case • Dimensions • Length – 6”
Avionics • Components • PerfectfliteStrattoLogger • Featherweight Raven • Concept of Operation • Activated by external key switches • Primary charge fired by both altimeters • Secondary charge fires 5 seconds later by Raven
Recovery • Mounting • Nosecone Tethered to Transition • Transition Tethered to Booster • Forged U-Bolts • Concept of Operations • Drogue @ Apogee • Main @ 1,500-Feet
Booster Assembly • Components • 98mm MMT + Retaining Ring • Fins x 3 • Coupler • Material • Carbon Fiber • Fiberglass (8oz) • Dimensions • Length 50 inches
Fins • Material • 1/8-inch G10 fiberglass • Fiberglass • Vinyl Ester Resin • Construction • Laser cutting • Hand sanding • Vacuum Bagging • Assembly • Mounting to MMT • Bond to booster • Tip to tip
Outreach • Previous Activities • Engineering Week • Astronomy Day • Lockheed Martin Space Day • Current Collaboration • Water rocketry • Hosting Robotic Competition • Connect a Million Minds