飞机操控系统故障诊断方法研究  

On a Fault Diagnosis Method for Aircraft Control System

作　　者：金勇俊[1,2] 唐万文[3] 杜永军[4] 

机构地区：[1]中国人民解放军95377部队 [2]凌云集团 [3]中国人民解放军94106部队 [4]西北工业大学

出　　处：《电光与控制》2010年第5期62-65,共4页Electronics Optics & Control

基　　金：国家航空科学基金项目(20070153005)

摘　　要：为提高飞控系统的可靠性和安全性,用基于模型的状态估计故障诊断方法对飞机操控系统的故障检测和诊断隔离技术进行了研究。通过建立模型和构造残差利用线性多项式方法(Polynomial Method,PM)对故障进行诊断。对PM诊断方法进行了数学分析和论证,仿真结果表明PM方法不但对于故障信号比较敏感,并且对于干扰有较强的抑制能力,可保持较高的鲁棒性,提高故障检测效果,适用于飞控系统故障检测和隔离。In order to improve the reliability and safety of aircraft control system,the Fault Detection and Isolation（FDI） technologies for aircraft control system was studied by using model based state estimate method.The linear Polynomial Method（PM） was used for fault diagnosis based on the constructed model and residual.Mathematical analysis was carried out to the PM diagnosis method.Simulation result showed that PM is not only sensitive to the fault signal,but also has strong interference suppression capability,thus it can maintain a high robustness with improved effectiveness of fault detection.This method is applicable to fault detection and isolation for flight control system.

关 键 词：飞机控制系统 残差检验 滤波 故障检测 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] U666.1[交通运输工程—船舶及航道工程]