绳系卫星系统复杂模型研究  

A SOPHISTICATED DYNAMICAL MODEL OF TETHERED SATELLITE SYSTEMS

作　　者：朱仁璋[1] 雷达 林华宝[2] 

机构地区：[1]北京航空航天大学宇航学院,北京100083 [2]中国空间技术研究院,北京100081

出　　处：《宇航学报》1999年第3期7-12,共6页Journal of Astronautics

摘　　要：对绳系卫星系统提出一种仿真度更高的动力学模型，着重研究状态保持阶段的子星的振荡与姿态运动。主星设为质点， 与系统质心相合， 作圆轨道运动； 子星取为三维刚体； 系绳采用珠式模型。除绳系系统动能、引力位能及系绳弹性势能外，还考虑了系绳的结构阻尼，以及由系绳外包皮引起的弯曲力矩与扭转力矩。计算机辅助推导参与模拟计算程序设计。A sophisticated dynamical model of tethered satellite systems is presented in this paper,where the tether is modeled as a system of N discrete point masses connected by massless springs,the nominal length of the tether is constant,the main satellite is taken as a point with msaa much greater than the subsatellite's mass,and the subsatellite is modeled as a rigid body.So,this dynamic model is described with 3(1+ N ) generalized coordinates (coordinates of the N beads and three attitude angles of the subsatellite).This model can describe the motion of the center of mass of the subsatellite and the attitude motion of the end body.

关 键 词：绳系卫星系统 动力学 复杂模型 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]