小卫星二次分离的动力学仿真

采用Adams软件对子星释放过程进行仿真. 在建立分离方案的简化模型、选定合理设计参数的基础上，以1颗子星分离为例，基于Adams平台对分离过程进行仿真，然后基于多体动力学理论对分离过程进行动力学计算，得到了子星的分离速度和角速度. 仿真结果和动力学计算结果是一致的，验证了Adams模型计算的正确性.

THE DYNAMIC SIMULATION OF SECONDARY SEPARATION OF SMALL SATELLITE

At present, the piggyback is often applied to small satellites launching, while the research of launching sub-satellites from secondary payload adapter of primary satellite is undeveloped. In this article, Adams simulation was made about the separation process of secondary separation structures. Firstly, the rational parameters were selected on the basis of the simplified model. After that, the simulation analysis and dynamic calculating were carried out and the velocity and angle velocity of one sub-satellite' separation were obtained. Finally, it could be concluded that the Adams model was correct comparing results. The conclusion of this article is of great importance on the design and the research of new small satellites.