制导炮弹可控滚转执行机构模型分析

摘要

In order to study the application of controllable-rolling actuactor(CRA)on finned projectile,the actuator was taken as study object.The moment acting on actuator was analyzed,and the system dynamics model was built.The structure of actuator was analyzed,and the dynamic model of actuator and the dynamics model of system were built.The system model under different condition was analyzed and verified.The result indicates that the dynamic model of the system is correct.The requirement of power and response speed of servo motor are reduced by the actuator,and the rudder wings efficiency is improved.The study offers solution and theory for the application of actuator on the guided projectile.%为解决可控滚转电动舵机在低旋尾翼弹上的应用,以舵体为研究对象,分析了作用在舵体上的力矩,建立了系统动力学模型;在分析舵机结构的基础上建立了舵机机构的的动力学模型和系统动力学模型.在不同的工况条件下对系统模型进行了分析和验证,分析结果验证了系统动力学模型的正确性.仿真结果表明,该舵机降低了伺服电机功率及响应速度的要求,提高了舵面效率,为在低旋制导炮弹上的应用提供了一种新的解决方案及理论参考.