某型直升机飞控系统故障诊断的研究  

Research on Fault Diagnosis for Control System of a Certain Type of Helicopter

作　　者：罗慕成 李波[1] 林雨生 LUO Mu-cheng;LI Bo;LIN Yu-sheng(China Helicopter Research and Development Institute, Jindezhen Jiangxi 333000, Chin)

机构地区：[1]中国直升机设计研究所,江西景德镇333000

出　　处：《机械研究与应用》2018年第2期130-133,137,共5页Mechanical Research & Application

摘　　要：飞控系统故障诊断研究是一项重要的工作。对直升机飞控系统中可能出现的故障进行了分析,提出了诊断措施。基于直升机模型的故障诊断技术,在直升机悬停状态下,建立了线性化运动方程,并建立了一个具有鲁棒性的直升机控制系统。分别在无故障和执行器发生故障这两种状态下,仿真分析了直升机的三轴姿态保持运动。最后在该模型的基础上设计了故障检测观测器,仿真结果表明了该方法的有效性。Research on fault diagnosis for the flight control system is an important task. In this paper,the faults which may occur in the helicopter flight control system are analyzed; then the diagnostic measures are proposed. Based on the fault diagnosis technology of helicopter model,a linearized equation of motion is established,and a robust helicopter control system is set up in the helicopter hovering state. Simulation and analysis on three-axis attitude keeping movement of the helicopter is respectively conducted under the fault-free conditions and failure state of the actuator. Finally,a fault detection observer is designed based on the model,and the simulation results prove the effectiveness of this method.

关 键 词：故障诊断 飞控系统 直升机 残差 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]