面对称高超声速飞行器三通道耦合稳定性控制策略设计判据  

Design criteria for control strategy of symmetrical hypersonic vehicle based on three-channel coupling stability

作　　者：吕达 张维桐 张石玉[1] 赵俊波[1] 张鲁民 苏浩秦[1] LYU Da;ZHANG Weitong;ZHANG Shiyu;ZHAO Junbo;ZHANG Lumin;SU Haoqin(China Academy of Aerospace Aerodynamics,Beijing 100074,China;School of Astronautics,Beihang University,Beijing 100191,China;National Computational Fluid Dynamics Laboratory,Beijing 100191,China)

机构地区：[1]中国航天空气动力技术研究院,北京100074 [2]北京航空航天大学宇航学院,北京100191 [3]国家计算流体力学实验室,北京100191

出　　处：《飞行力学》2023年第3期67-74,共8页Flight Dynamics

基　　金：国家重点基础研究发展计划资助(613272)。

摘　　要：针对面对称高超声速飞行器强耦合、弱阻尼的特点,研究了其耦合姿态的有效控制问题。首先,利用稳定轴系的概念推导出了姿态角加速度表达的面对称高超声速飞行器三通道失稳敏感性判别式。然后,给出了三通道耦合稳定性控制策略设计判据。最后,设计了某型面对称高超声速飞行器三通道耦合的姿态控制律,并进行了仿真。仿真结果表明,当控制律满足三通道耦合稳定性控制策略设计判据时,飞行器的姿态稳定;反之,则会出现各类耦合失稳问题。所提控制策略设计判据操作简单、实用性强。Aiming at the characteristics of strong coupling and weak damping of symmetrical hypersonic vehicle,the effective control of its coupled attitude was studied.Firstly,the three-channel instability sensitivity criterion expressed by the attitude angular acceleration of the symmetrical hypersonic vehicle was deduced by using the stable coordinate system.Then,the control strategy design criterion of the three-channel coupling stability was deduced.Finally,the three-channel coupled attitude control law of a typical symmetrical hypersonic vehicle was designed according to the criterion,and the simulation was carried out.The simulation results show that the attitude of the aircraft is stable when the control law meets the design criteria.On the contrary,there are various coupling instability problems.The design criterion of control strategy developed is simple and practical.

关 键 词：面对称高超声速飞行器 三通道耦合 稳定性 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计] V448