航天飞行器相对运动动力学及其控制方法

采用本地轨道从标系对两邻飞船间相对运动动力学展开研究，指出在相对运动中也存在平衡状态，用相平面方法分析了其稳定性，基于此分析，综合出相对运动控制方法，即距离速率控制方法，受控运动轨迹是一条稳定的稳态直线，进而建立了全方位距离速率控制方法。最后以系绳卫星系统和飞船安全为例完成了计算机模拟。

THE DYNAMICS AND CONTROL OF THE SPACECRAFT' RELATIVE MOTION

The dynamics of the relative motion between two nearby spacecraft is investigated in a local orbital coordinate system. It` has been pointed out that an equilibrium state may exist in the motion; The phase plane method is adopted to analyse the stability of the eqilibrium state. Based on this analysis, a control method called Range-Rate Control Algorithm (RRCA ) has been established, the controlled trajectory is stable and straight-line. Furthermore, an omni -directional version of RRCA has also been introduced. As a illustration example, the tethered satellite system as well as in-orbit spacecraft rendezvous are simulated by the algorithm.