自旋弹头的自适应变结构控制研究

Research on Adaptive Variable Structure Control of a Spinning Warhead

对自旋弹头实现末端机动的变质心控制系统进行了研究。采用牛顿力学方法重新建立了自旋弹头的姿态运动模型。在此基础上，采用自适应变结构控制方法设计了变质心控制系统，对弹头内部质量块的偏移运动进行控制，进而准确地控制自旋弹头的姿态运动。仿真结果表明：所设计的变质心控制系统具有快速性和较高的控制精度，实现了对自旋弹头姿态角的准确控制。

The varying centroid control system was studied, by which a spinning warhead realizing the terminal maneuvering. The Newton dynamics method was applied to construct the attitude motion model of the spinning warhead. On the basis of it, the adaptive variable structure control technique was adopted to design the varying centroid control system. It controled the displacement of a mass in the warhead; consequently it exactly controled the attitude motion of the spinning warhead. Simulation results show that the designed varying centroid control system has high speediness and control precision and realizes exact control of the spinning warhead＇s attitude angles.