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为实现空间两飞行器的交会对接,需要对空间交会对接过程进行仿真调试。为此,构建空间对接半实物仿真试验台,克服无实物仿真环境的局限性,再现2个空间飞行器的交会对接过程。提出对接机构测控系统设计方案,描述其软件结构和控制流程,建立对接机构测控模型,通过RT-LAB实时仿真平台将模型下载到测控计算机上运行,实现对接机构传感器信号的采集和运动控制。试验结果表明,该系统模型能够模拟飞行器的交会对接过程,具有较好的实时性,系统运行稳定、可靠。
In order to realize rendezvous and docking of two spacecrafts, it is necessary to simulate and debug the rendezvous and docking process of the rendezvous and docking space. To this end, the construction of space docking semi-physical simulation test bench to overcome the limitations of non-physical simulation environment to reproduce the intersection of two spacecraft rendezvous and docking process. The design scheme of the measurement and control system of the docking mechanism is proposed. The software structure and control flow are described. The measurement and control model of the docking mechanism is established. The model is downloaded to the monitoring and control computer through the RT-LAB real-time simulation platform to realize the sensor signal acquisition and motion control of the docking mechanism. The experimental results show that the system model can simulate the aircraft rendezvous and docking process, has good real-time performance, and the system is stable and reliable.