重复使用运载器返回段横侧向控制系统

分析了偏航角速率和滚转角速率反馈的开环二次零点和荷兰滚极点在根轨迹上的分布情况,以及零极点 相对位置关系对控制的影响.提出用滚转角速率改善荷兰滚稳定性.针对RLV返回段的飞行任务和横航向耦舍 特性,设计了方向舵控制滚转的方案.避免副翼操纵的不利偏航.仿真结果表明,方向舵控制滚转能有效降低侧 滑并能减小控制舵面.

Reusable Launch Vehicle Lateral Control Design of Glide Return Phase

To ensure the security of vehicle,the dynamics and the stability are analyzed and the lateral controller is designed.The relative location of the open-loop quadratic poles/zeros of the yaw rate to the rudder and roll rate to the aileron is discussed.The feedback of the roll rate to the aileron can improve the stability of the Dutch roll than the feedback of the yaw rate.To avoid the adverse yaw by ailerons,a yaw-to-roll concept method is developed by using primarily rudder for lateral-directional control.Th...