飞机防滑刹车系统的变结构控制研究

对滑模变结构控制方法进行研究,将其应用于飞机防滑刹车系统的控制中。通过对飞机起降过程的分析,简化了系统的外部条件,建立了飞机刹车系统的非线性模型。结合滑模变结构控制的特点,设计出一种飞机刹车系统的变结构控制。仿真结果证明了所提出的滑模变结构控制方法的正确性和有效性。

Improving Variable Structure Control of Aircraft Anti-Skid Brake System

Aim.The main shortcoming of existing variable structure control is,in our opinion,that it is not efficient and that its adaptability is poor.We now present a method that we believe can much reduce this shortcoming.In the full paper,we explain our method in some detail;in this abstract,we just add some pertinent remarks to naming the first two sections.Section 1 is:the principles of aircraft anti-skid brake system.Section 2 is:the variable structure control of the aircraft anti-skid brake system.Its three subsections are:the variable structure control of a nonlinear system's sliding mode(subsection 2.1),the mathematical model of the aircraft brake system(subsection 2.2)and the implementation of the variable structure control of the aircraft anti-skid brake system(subsection 2.3).Fig.2 in subsection 2.2 shows the loads acting on the aircraft when it taxis on the runway.Of the equations we derive in subsection 2.3,eqs.(15) and(16) are the most important.Finally we perform simulations in Matlab/Simulink.The simulation results,shown in Fig.4 in the full paper,show preliminarily that our sliding mode variable structure controller is highly efficient and possesses good adaptability.