飞机结冰时不变参数识别技术

摘要

Aircraft icing is one of the flight accidents usually. As issue has been paid more attention, the aircraft icing research is facing the direction of intelligent identification and control integrated. Then the first problem to be solved is aircraft icing parameter detection technology. The paper introduces the six degrees of freedom of aircraft simulation model and ice parameter model. Then an aircraft icing parameter identification method is introduced, which is based on H-infinity, and also verify its feasibility by simulation results. This method is not subject to the influence of external disturbances.%随着飞机结冰问题受到的关注程度的提高,飞机结冰问题研究向智能结冰检测与控制综合的方向发展.而其中的首先需要解决的问题是飞机结冰参数检测技术.通过引入飞机六自由度仿真模型以及飞机结冰参数模型,然后利用H∞参数识别方法定量检测的飞机气动导数,从而可以定量描述飞机结冰后气动导数变化.将飞机气动倒导数作为检测对象,进行了仿真计算.仿真计算结果达到满意的效果,该识别方法对外界扰动有一定的鲁棒性.