飞行控制系统舵面效率损失率估算方法研究  

Study of Control Surface Failure Rate Estimation Method

作　　者：沈毅[1] 于晓敏 邓建华[1] 

机构地区：[1]西北工业大学飞机系,陕西西安710072 [2]飞行自动控制研究所军代表室,陕西西安710065

出　　处：《飞行力学》2003年第3期28-31,共4页Flight Dynamics

基　　金：航空科研基础基金资助项目(99E53046)

摘　　要：以某型飞机为研究对象,论述了一种基于模型的自修复飞行控制系统舵面效率损失率的估算方法。首次提出了采用多传感器信息融合来估算舵面效率损失率。因为舵面损伤故障采用全局滤波法检测,没有可直接测量其损伤程度的传感器,所以需要从飞控系统中多个传感器的测量信号综合判决来估算舵面损伤情况。最后,对所设计的舵面效率损失率的估算方法进行了数字仿真研究。仿真结果验证了该方法具有较高的准确性和实时性,为飞行控制系统舵面效率损失率的估算提供了一种有效的方法。With some type of aircraft as the study object, this paper discusses a measurement method which based on a model plane.It is applied to estimate selfrestoration flight control system control surface efficiency failure rate. For the first time, the technique of multitransducer information fusion is adopted to measure control surface failure rate. As a global filtering approach is used to detect control surface failure, we need comprehensive judgement of the measurement signal of multitransducer in a flight control system due to the lack of transducers to directly detect the failure. Finally, a digital simulation study is made of the method of estimating the control surface efficiency failure. The method bears higher accuracy and realtime, providing an effective approach for estimating the flight control system control surface efficiency failure rate.

关 键 词：飞机 飞行控制系统 舵面效率损失率 传感器 信息融合 等价空间法 全局滤波 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]