Dependence of Dynamic Modeling Accuracy on Sensor Measurements, Mass Properties, and Aircraft Geometry

[摘要] The NASA Generic Transport Model (GTM) nonlinear simulation was used to investigate the effects of errors in sensormeasurements, mass properties, and aircraft geometry on the accuracy of identified parameters in mathematical modelsdescribing the flight dynamics and determined from flight data. Measurements from a typical flight condition and systemidentification maneuver were systematically and progressively deteriorated by introducing noise, resolution errors, and biaserrors. The data were then used to estimate nondimensional stability and control derivatives within a Monte Carlo simulation.Based on these results, recommendations are provided for maximum allowable errors in sensor measurements, massproperties, and aircraft geometry to achieve desired levels of dynamic modeling accuracy. Results using additional flightconditions and parameter estimation methods, as well as a nonlinear flight simulation of the General Dynamics F-16 aircraft,were compared with these recommendations

[发布日期] 2013-11-01

[学科分类] 航空航天科学