基于飞行试验的民用飞机横航向气动参数辨识研究  

Lateral and Directional Aerodynamic Parameter Identification for Civil Airplane

作　　者：刘星宇 王育平[1] 付琳[1] 

机构地区：[1]上海飞机设计研究院总体气动设计研究部,上海201210

出　　处：《科技创业家》2013年第8期150-151,共2页Technological Pioneers

摘　　要：飞机气动参数辨识是利用飞机在飞行试验过程中测得的状态响应数据对飞机的气动参数进行辨识的技术。设计了横航向气动参数辨识的激励信号,建立了非线性辨识模型。基于极大似然法对飞行试验数据进行辨识研究,得到横航向气动参数。对比飞行试验和辨识结果仿真的时间历程,表明辨识结果准确。The aerodynamic parameter identification is such a technique that using the flight data measured in flight test to estimate the aerodynamic parameters of airplane. For lateral and directional aerodynamic parameter identification, the excitation signal is designed and the nonlinear identification model is established. A airplane’s flight data is analyzed through maximum likelihood method to obtain the lateral and directional aerodynamic parameters. The comparison between flight data and simulation of model identified, demonstrating that the identification result is accurate.

关 键 词：参数辨识 横航向气动参数 民用飞机 

分 类 号：V27[航空宇航科学与技术—飞行器设计] V21