空间合作目标运动再现的相似设计方法研究

以相似理论为基础设计一种绝对运动等效代换方案以在地面试验中实现空间合作目标绝对运动与相对运动同时再现。首先应用量纲分析法给出空间合作目标轨道姿态动力学问题地面试验的相似准则；然后，提出绝对运动等效代换方法，并以此为基础建立运动再现地面试验模拟器的轨道姿态动力学方程；最后以航天器交会对接最终逼近段地面验证试验为例给出地面试验系统验证方案的具体实施步骤，并通过仿真算例说明所提方法的有效性。

Similitude Design Method for Motion Reconstruction of Space Cooperative Vehicles

In this paper，a similarity theory based absolute motion equivalent substitution scheme is proposed such that the absolute motion and relative motion of space cooperative vehicles in the ground experiment can be realized simultaneously. Firstly, the dimensional analysis is used to give the similarity criterions of orbit and attitude dynamics of space cooperative vehicles under ground test condition. Then, an absolute motion equivalent substitution method is proposed to establish orbit and attitude dynamics equations of simulated vehicles for motion reconstruction under ground test condition. At last, the specific implementation steps of test schemes are given for the ground experiment system of the final approach phase of spacecraft rendezvous and docking. The simulation results show the effectiveness of the proposed method.