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Tethered Glider P14462 Project Review. Saj Subhani Kyle Ball Jon Erbelding. Matt Douglas Paul Grossi Bill Charlock. Background.
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Tethered GliderP14462Project Review Saj Subhani Kyle Ball Jon Erbelding Matt Douglas Paul Grossi Bill Charlock
Background Current wind energy is harvested primarily using wind turbines; however, these wind turbines are very limited. They require large bases to support large blades, which limits the heights that they can achieve. A better solution to harvest wind energy lies in high altitude kites. High altitude kites are capable of reaching the faster, more consistent winds in the upper atmosphere.
Project Goals • Design and construct a base station to measure and record the position and tether tension of a tethered glider • Fly glider unpowered using human controlled input • Fly glider in a circular flight path for 3+ minutes, while maintaining tether tension Glider Tether Base Station Operator w/ controller
Final Design - Glider • RC Plane • 1 Aerobird • 3 Bixlers • 3 Point Bridle • Offset from center • Dyneema Tether • 55 meters • 1000 lbs breaking tension • On Site Repairs • Foam Glue • Duct Tape
Glider Damages • Major Damages • Severe nose damage • Wings ripped out • Fuselage snapped • Tail broke off • Control surfaces ripped off • Lost motor control • Motor support broke in half
Final Design - Base Station • Two potentiometers that measure horizontal and vertical sweep angles • Single load cell that the tether attaches to, which measures tether tension • Sensors wired into NI DAQ device which worked in conjunction with LabView to record and process signals
Results • All flights were powered • Glider lost altitude over time • For 1 loop • Taut • Tether Tension was 23.22 lbs • During Loop • Varied from 0.23 lbs to 5.78 lbs • Tether tension expected to increase with more loops • Max glider speed of 45 mph
Future Iterations • Glider lost altitude over time • Believed to be caused by our bridle setup • Design a plane for a 2 point bridle system • Aileron Control while in flight path • More robust plane • Too difficult for human control • Automation would be required