摘要
本文研究由主刚体、转子及以弹性轴连接的刚性矩形平板组成的带弹性轴双自旋卫星在万有引力场中的姿态运动。用Liapunov直接方法判断双自旋卫星在轨道坐标系内相对平衡的稳定性,导出稳定性充分条件。讨论弹性轴及刚性平板的几何和质量几何、弹性轴扭转刚度、转子转速等因素对卫星姿态稳定性的影响。
In this paper, a discussion is given for the attitude motion of a dual-spinner, composed of the main rigid body, a rotor and an elastic axis join up with a rectangular rigid plate in the gravitational field. The stability of relative equilibrium of the dualspinner in the orbital plane is determined by the use of the Liapunov's direct method. This study shows that a sufficient condition of stability is secured, and the influence of the geometry and mass geometry, torsional stiffness of elastic axis, the influence of the speed of the rotor on the attitude stability is analyzed.
出处
《上海力学》
CSCD
1997年第4期327-331,共5页
Chinese Quarterly Mechanics
关键词
姿态稳定性
挠性多体动力学
卫星
双自旋
attitude stability, flexible multi-body dynamics, Liapunov's direct method.
