Thomas Martig NASA - ASCEND

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Presentation transcript:

Thomas Martig NASA - ASCEND Material to be Covered: Sizing Methodology Wing Design Static & Dynamic Stability ASU Satellite Laboratory

Sizing Methodology Varied Aspect Ratio and wing loading No Sweep Unnecessary, assume speeds not near compressibility No Taper Benefit of taper dwarfed by cost of materials Constraint Range – Breguet Equation Weight ASU Satellite Laboratory

Weight Model Empirical data Gliders of similar Aspect Ratios Balsa Wood construction ~ 50 gliders sourced Trends line from weight verse wing area used for weight equation ASU Satellite Laboratory

Glider Values Glide Ratio 30: Empty Weight: 1.16 kg Span: 2.2 meters ASU Satellite Laboratory

Fabrication Research in deign methods Use of fiberglass, carbon fiber, Styrofoam ASU Satellite Laboratory

Static Stability Tornado Stability Derivatives, and Moments Pitching Moment Roll and Yaw Moments ASU Satellite Laboratory

Dynamic Stability Use of Tornado to determine coefficients of stability Apply dynamic stability derivatives to produce code for trim deflections V (m/s) 10 AOA (deg.) Deflection Angle -10 9.596094 -5 5.369538 5 -6.45577 -13.8208 ASU Satellite Laboratory