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Development of Nonlinear Aeroelastic/Flight Dynamic Analysis Tools

When people analyze the aeroelasticity of very flexible aircraft, e.g., High-Altitude Long-Endurance (HALE) UAVs, traditional linear methodology does not give the accurate answer. Instead, a nonlinear structural model that accounts for the large deformation is required. As the HALE aircraft feature high-aspect-ratio wings, a nonlinear beam model is usually used. Here is our development with a novel, strain-based geometrically nonlinear beam model, coupled with aerodynamics and flight dynamic equations.

Sensorcraft Helios Global_Observer Vulture
Nonlinear Aeroelastic Framework
Last updated: 01/23/2016
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