飞机防滑刹车系统模糊滑模控制研究  

Research on Fuzzy Sliding Mode Control of Aircraft Antiskid Brake System

作　　者：杨建忠 王浩天 陈希远 YANG Jian-zhong;WANG Hao-tian;CHEN Xi-yuan(College of Seaworthiness,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学适航学院,天津东丽300300

出　　处：《计算机仿真》2022年第7期74-80,共7页Computer Simulation

基　　金：中央高校基本科研业务中国民航大学专项(3122018D034)。

摘　　要：针对现在飞机广泛应用的“PD+PBM”控制律难以对具有强非线性和不确定性的飞机防滑刹车系统进行高性能控制的问题,提出飞机防滑刹车系统基于模糊指数趋近律的滑模变结构控制律。先建立具有不确定扰动的飞机防滑刹车系统的地面动力学模型以消除模型误差所带来的不利影响,然后设计了基于指数趋近律的滑模变结构控制律以改善控制性能,并利用李雅普诺夫定理证明了系统的稳定性,最后基于模糊理论对滑模控制律进行优化以抑制抖振。仿真结果表明,基于模糊指数趋近律的滑模变结构控制律控制效果优于“PD+PBM”控制律和传统的滑模控制律,抑制控制器输出抖振效果良好,刹车效率高,控制方法合理有效。To solve the problem that PD+PBM control law widely used in aircraft is difficult to control the aircraft anti-skid brake system with strong nonlinearity and uncertainty,a sliding mode variable structure control law for aircraft anti-skid brake system based on fuzzy exponential approach law is proposed.Firstly,the ground dynamics model of the aircraft antiskid braking system with uncertain disturbances was established to eliminate the adverse effects caused by model errors.Then,the sliding mode variable structure control law based on exponential approach law was designed to improve the control performance,and the stability of the system was proved through lyapunov theorem.Finally,based on fuzzy theory,the sliding mode control law was optimized to suppress chattering.The simulation results show that the sliding mode variable structure control law based on fuzzy exponential approach law has better control effect than PD+PBM control law and traditional sliding mode control law.The chattering suppression effect of the controller is good,the braking efficiency is high,and the control method is reasonable and effective.

关 键 词：飞机防滑刹车系统 模糊 滑模变结构 不确定性 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]