Space docking mechanism was used to realize the space docking and separation for the aircraft and space station.In order to simulate the process of space separation,the buffering test table was developed to study the variety rule attitude angle and attitude angle velocity of the aircraft and space station.At the same time,the digital prototype model was built to analyze the movement characteristics of the space vehicles.Comparing the re-sults obtained from the two analysis methods,this paper demonstrates the effect of the buffering test table on con-nection and separation experimentation.%为了模拟空间的分离过程，在地面上研制了具备五自由度的大型缓冲试验台，以此研究在对接分离过程中运输飞船和空间站相对分离速度、姿态角及姿态角速度等的变化规律。本文建立了地面环境及空间零重力环境两种状态下的理论分离模型，对比了两种状态下的分离过程和结果；同时还建立了两种状态下的全数值样机仿真模型，依据某工况下的试验条件，计算分析了运输飞船和空间站在分离过程中的运动特性。从理论和数值仿真两方面阐述了缓冲试验台在模拟分离时的情况，论证了利用缓冲试验台模拟空间状态下两飞行器分离过程的有效性。
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