气动/推力矢量飞行器分阶段复合控制分配策略设计

Compound control allocation strategy design of dual aero/thrust vector vehicle based on different flight phases

以气动/燃气舵推力矢量复合控制反坦克导弹为研究对象,研究了不同飞行阶段下的气动/推力矢量复合控制分配策略问题。通过分析气动舵和燃气舵控制效率受导弹飞行速度变化的影响,并结合不同飞行阶段的飞行任务和特点,分别基于模糊逻辑以及链式递增理论,设计了适用于初始飞行段和末制导段的复合控制分配策略。仿真结果表明,所设计的两种策略均保证了复合控制系统具有较快的响应速度和良好的控制精度,同时缩短了燃气舵的工作时间,减少了推力损失。

The compound control allocation strategy is mainly researched based on the anti-tank missile wtth dual aero/iet vane thrust vector control. According to the analysis of the influence of velocity on control efficien- cy of aerodynamic rudder and jet vane and the analysis of the ohiectives and characteristics of different flight pha- ses, the allocation strategies of both initial flight phase and terminal guidance phase are designed based on fuzzy logic and increasing chain theory, separately. Simulation results show that the strategies have good effects on flight control and the loss of thrust can be decreased at the same time.