基于动态方程的高超声速飞行器姿态协调控制

为解决高超声速飞行器飞行控制系统中的协调问题, 提出一种基于动态方程的耦合分析方法, 并运用该方法分析高超声速飞行器姿态的动态耦合关系, 设计了协调控制器。首先, 研究了高超声速飞行器的姿态运动特性; 并根据飞行器耦合特点, 提出一种基于动态方程的耦合分析方法用来反映变量间的动态耦合关系; 结合耦合阵, 基于分层滑模控制设计飞行器的协调控制器, 有效应对操纵舵之间的强耦合。基于Lyapunov 理论证明了闭环系统具有渐进稳定性, 并通过仿真实验验证了所提方法的有效性, 实现了姿态的协调控制。

Attitude Coordination Control of Hypersonic Vehicle Based on Dynamical Equation

A new coupling analysis method is proposed to solve the problem of coordination in the flight control system of hypersonic vehicle, which is used to study the coupling interconnection of the attitude dynamics for hypersonic vehicles, and a coordination controller is designed. Firstly, the attitude dynamic characteristics of a hypersonic vehicle is studied. Secondly, according to the coupling characteristics, a novel coupling analysis method based on the attitude dynamical equation is proposed to describe the coupling relationships among the attitude variables. Then, combining with the dynamical matrix, a coordination controller is designed based on hierarchical sliding mode control method to deal with the strong coupling problem between the control surfaces. Finally, the asymptotic stability of the closed-loop system is proved by using Lyapunov theory, and the simulation results are given to verify the effectiveness of the proposed method, and the coordination control of attitude is realized.