自主在轨服务航天器空间对接过程建模与仿真

Modeling and Simulating of Independent On-orbit Servicing Spacecrafts' Docking Process

发展在轨服务技术是延长航天器的使用寿命,提升航天器的整体性能的一种有效手段。对采用了一种新型对接机构的两颗自主在轨服务航天器的空间对接过程,进行了运动学和动力学建模,并利用多体动力学仿真软件ADAMS建立控制系统的方法,进行了三组具有不同初始条件及控制作用的对比仿真分析,结果证明对接机构性能良好,在一般初始条件下均可实现可靠对接。另外,还结合仿真结果给出了部分改进设计,为对接机构的进一步完善提供了参考。

The on-orbit servicing is an effectual method to extend the life and enhance the performance of spacecrafts.This paper established the kinematics and dynamics models of docking process of two on-orbit servicing spacecrafts with a new type docking mechanism,and three groups of contrast simulations and controls were done under different initial conditions,with the control systems established in ADAMS.The results indicate that the satellites can dock reliably in general initial conditions.In addition,some suggestions about design improvements were given,and the simulations can be a reference for the betterment of this type docking mechanism.