基于参数辨识的直升机姿态敏捷试飞技术

Parameter identification based helicopter attitude agility flight test technology

基于不同的规范要求、试飞方法及响应类型,通过参数辨识方法对直升机的姿态敏捷特性进行研究,得到了二阶响应直升机姿态敏捷响应曲线,通过辨识结果能够更准确快捷地得到直升机姿态敏捷的考核指标。最后,结合某型直升机试飞结果对相关结论进行了具体分析,对后续直升机飞行品质试飞具有一定的指导意义。

This paper presented a research of the helicopter attitude agility by means of parameter identifi- cation. Based on different specifications, test methods and response types, the helicopter attitude agility response in the second-order form was obtained with the method of parameter identification. The assess- ment indexes of helicopter attitude agility could be obtained more accurately and quickly through parame- ter identification. Finally, combined with the results of the helicopter flight test, the related conclusions were analyzed, which provides a guidance for the subsequent helicopter flight aualitv test.