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针对位于日地系统共线平动点附近三维周期轨道上的旋转绳系卫星编队,利用数值仿真研究其重构阶段的动力学稳定性问题。编队系统为一个母卫星和n个子卫星通过长度可变系绳连接的轮辐状结构,基于Hill限制性三体问题建立姿态与轨道耦合的动力学模型,分别针对留位以及包含展开和回收的编队重构阶段,利用非线性数值仿真研究其姿态稳定性。研究表明系统留位姿态稳定,展开不稳定,回收稳定,较小的母卫星轨道高度及绳长变化速度更有利于姿态稳定。
Aiming at the formation of a rotating tethered satellite system on a three-dimensional periodic orbit around the collinear point of the system, the numerical simulation is used to study the dynamic stability of the system. The formation system is a spoke-and-spoke structure of a mother satellite and n subsatellites connected by a variable length tether. Based on the Hill constrained three-body problem, a dynamic model of attitude and orbit coupling is established, and the formation and retrain formation In the reconstruction phase, the attitude stability is studied by nonlinear numerical simulation. The research shows that the stance of the system is stable, unfolded unstably, and recovered steadily. The smaller satellite orbital height and rope length change speed are more conducive to attitude stability.