多操纵面飞机执行器效能降低故障有限时间估计方法  

Finite time estimation method for multi-effector aircraft with loss-of-effectiveness actuators

作　　者：支健辉 刘永波[1] 韩孟虎 杨成荫 程立国 ZHI Jianhui;LIU Yongbo;HAN Menghu;YANG Chengyin;CHENG Liguo(93199 Troops of the PLA,Harbin 150001,China)

机构地区：[1]中国人民解放军93199部队,黑龙江哈尔滨150001

出　　处：《飞行力学》2021年第5期44-48,共5页Flight Dynamics

基　　金：陕西省自然科学基础研究计划资助(2019JQ-711)。

摘　　要：针对多操纵面飞机执行器效能降低故障估计问题,提出了一种鲁棒自适应有限时间收敛的故障估计方法。通过引入执行器剩余效能矩阵,建立了飞控系统的故障后模型,并对该模型进行了仿射变换。在此基础上,通过构建辅助回归矩阵和辅助误差向量,设计了有限时间故障估计方法,并利用Lyapunov稳定性理论证明了该方法的收敛特性。为验证其有效性,以ADMIRE飞机为对象进行了单发故障和并发故障的多故障情形仿真。仿真结果表明,所提出的方法不但能有效估计执行器剩余效能系数,而且能实现系统状态的良好跟踪。In this paper, dealing with fault estimation issue of multi-effector aircrafts with loss-of-effectiveness actuators, a fault estimation method based on robust adaptive finite time convergence was proposed. By introducing the residual effectiveness matrix of the control surfaces, the post fault model of the flight control system was established, then the affine transformation of the model was carried out. On this basis, a finite time fault estimation method was proposed by constructing auxiliary regression matrix and auxiliary error vector. With the help of Lyapunov stability theory, the convergence property of the proposed method was proved. In order to verify the effectiveness of the proposed method, the ADMIRE aircraft was taken into consideration to simulate the multiple faults scenarios of single fault and concurrent fault. Simulation results demonstrate that the proposed method can not only effectively estimate the residual effectiveness coefficients of control surfaces, but also achieve good state tracking performance.

关 键 词：多操纵面飞机 执行器 效能降低 故障估计 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]