再入弹头质量矩复合控制系统设计  

Control System Design for Reentry Warhead with Mass Moment Compound Actuate

作　　者：李瑞康[1] 荆武兴[1] 高长生[1] 杜华军[2] 

机构地区：[1]哈尔滨工业大学航天工程系,哈尔滨150001 [2]北京航天自动控制研究所,北京100854

出　　处：《航天控制》2009年第4期43-48,52,共7页Aerospace Control

基　　金：国家自然科学基金资助项目(10572042)

摘　　要：针对提出的再入弹头质量矩复合控制模式,利用变结构控制方法设计了三通道的姿态控制律。为了抑制滑块跟踪运动和再入过程中非对称气动烧蚀带来的影响以及满足快速、鲁棒性的要求,设计了基于时间最优的滚动通道的稳定控制律;用双积分系统的时间性能指标来确定切换线,同时构造双切换函数以及在原点领域切换为连续控制律来解决开关颤振问题;为了抑制滑块运动带来的影响,在滑块结构布局优化的基础上,利用变结构设计了俯仰和偏航通道姿态控制律。最后,通过非线性系统仿真验证了该方法的有效性。A variable structure control system is designed for the reentry warhead with mass moment com- pound actuate. The roll is subject to moving-masses movement and asymmetric ablation and erosion experi- enced by aerodynamic in reentry process. In order to curb these interferences, roll control law is design by u- sing of time optimal with sliding mode, the problem of switch high frequency is solved by constructing two switch functions and switching continuous control law near the equilibrium point. To overcome the interfer- ence on warhead result from mass movement, the pitch and yaw attitude control law are designed by using variable structure control method based on the layout optimization of masses. Simulation results are presen- ted which show that the feasibility of proposed method in this paper.

关 键 词：质量矩控制 滚动稳定 再入弹头 变结构控制 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]