电动舵机动力学与旋转导弹转速关系研究

Research on the Relationship Between Electromechanical Actuator Dynamics and Rotation Rate of Rolling Missile

利用准弹体坐标系下舵机环节传递函数,推导了由舵机延迟而产生方位误差的表达式。将此方位误差等效为控制回路耦合,通过分析横向偏差和视线角速率等性能指标,得到旋转弹转速和电动舵机无阻尼自振频率的约束关系,为旋转弹转速设计和电动舵机设计提供参考,具有一定的理论和工程价值。

The formula about the direction error caused by electromechanical actuator delay is established,using the actuator loop transfer function under quasi-body coordinate system. Taking the direction error as the coupling of motion on guidance loop,the constrained relationship between rotation rate and actuator undamped natural frequency is given by analyzing the values of lateral position error and LOS rate. It will be theoretically and practically significant in both the rotation rate design and actuator design of a rolling missile.