高超声速飞行器气动耦合分析及协调控制研究

为解决高超声速飞行器姿态运动之间存在的强耦合问题，针对飞行器的气动耦合进行分析，并在此基础上设计了削弱气动耦合的姿态协调控制器。在分析高超声速飞行器状态三通道气动力矩之间的关系基础上，运用动态方程的耦合分析方法得到三通道之间气动耦合关系，求解出耦合度矩阵，引入耦合熵的概念，根据耦合熵判断耦合是否可忽略，并对飞行器姿态协调滑模控制器进行了设计。仿真结果表明，所设计的控制器可有效削弱飞行器三通道之间的气动耦合，在保证姿态稳定的前提下提高系统的动态响应能力。

Aerodynamic Coupling Analysis and Coordinated Control of Hypersonic Vehicle

There are strong couplings between the attitude motion of a hypersonic vehicle，which can be divided into motion coupling，aerodynamic coupling，and inertial coupling． The aerodynamic coupling of aircraft is analyzed，the attitude controller is designed to weaken aerodynamic coupling． Firstly，the relationship between the aerodynamic moments of the hypersonic vehicle's three channels is analyzed． Secondly，by using the coupling analysis method of dynamic equations，the coupling relationship between the channels is obtained and the coupling matrices are solved． Then，combining the coupling matrices to judge whether coupling can be ignored，an attitude coordination controller is designed． The simulation results show that the designed controller can effectively weaken the aerodynamic coupling between the three channels of the aircraft，and improve the dynamic response ability of the system on the premise of ensuring the stability of the attitude．