Quarternion Models for Aircraft Loss-of-Control Analysis
نویسنده
چکیده
Loss-of-Control (LOC) is a major factor in fatal aircraft accidents. LOC is generally associated with flight outside of the normal flight envelope almost always involving nonlinear behaviors and often including extreme attitude conditions. Recent and ongoing work at the NASA Langley Research Center has focused on building aerodynamic models adequate for simulation and analysis in these regimes. Models that capture out-of-envelope behavior with extreme attitudes also require quaternion rather than Euler attitude parametrization. This paper describes such expanded models and examines how these nonlinearities affect the ability to control the aircraft and how they may contribute to loss-of-control.
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