变质心自旋弹头的建模及自适应滑模控制  

Modeling and Adaptive Sliding Mode Control of Varying Centroid Spinning Warhead

作　　者：赵红超[1] 王亭[1] 范绍里[1] 

机构地区：[1]海军航空工程学院703教研室,山东烟台264001

出　　处：《科技导报》2009年第5期43-46,共4页Science & Technology Review

基　　金：中国博士后科学基金项目(20070421095);国家自然科学基金项目(60774016)

摘　　要：对自旋弹头实现末端机动的变质心控制系统进行了研究。为了明确表示自旋弹头的运动参数与质量块运动参数之间的关系,采用牛顿力学方法建立自旋弹头的姿态运动模型。模型包括质量块运动方程、姿态运动的运动学方程和动力学方程。考虑到俯仰和偏航通道的动力学特性为非线性的、铰链耦合的,采用自适应滑模控制方法设计了变质心控制系统,对系统中的不确定项进行估计和补偿,保证系统的跟踪误差收敛到零。变质心控制系统通过对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。为了检验所设计的变质心控制系统的控制性能,利用MATLAB/Simulink软件构建系统的仿真模型,进行仿真研究。仿真结果表明:所设计的变质心控制系统具有较高的快速性和控制精度,实现了对自旋弹头姿态角的准确控制。The varying centroid control system is studied in this paper for the terminal maneuvering of a spinning warhead. To obtain the relation between motion parameters of a spinning warhead and those of a mass, the Newton dynamics method is applied to construct an attitude motion model of the spinning warhead. The model includes the moving equation of the mass, the kinematic equation and the dynamic equation of the attitude motion. The dynamical behaviors of pitch channel and yaw channel are nonlinear and coupled. The adaptive sliding mode control method is adopted for the varying centroid control system, which estimates and compensates the uncertain term of the system, and ensures that the system tracking error converges to zero. The varying centroid control system can exactly control the attitude motion of the spinning warhead by controlling the displacement of the mass. To test the performance of the designed varying centroid control system, the MATLAB/Simulink used to construct the system simulation model and carry out the simulation. Simulation results show that the designed varying centroid control system enjoys high speed andhigh control precision and can achieve an exact control of the spinning warhead＇s attitude angles.

关 键 词：自旋弹头 变质心控制 姿态运动 自适应滑模控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]