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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 more advanced dynamic model of tethered satellite system is proposed, focusing on the oscillation and attitude movement of the sub-stars during the state-holding period. The main star is set as a mass point, and the system center of mass, for circular orbit; child as three-dimensional rigid body; bead using bead model. In addition to the tethered system kinetic energy, gravitational potential energy and tether elastic potential energy, the structural damping of the tether as well as the bending moment and torsional moment caused by the tether outer envelope are considered. Computer-aided derivation involved in simulation calculation program design.