Study on Simulation of External Flux in Vacuum Thermal Test of Docking Mechanism

According to the structural characteristic and the test demand of docking,three schemes for external flux simulation which were infrared heating cage,heating chip and infrared heating cage + heating chip were presented in this paper.The stable temperature distribution in vacuum tank simulated environment of various components of docking mechanism for the 3 schemes was calculated by simulation,and results were compared to those in orbit environment.The component with maximum temperature difference was identified.The study showed that the scheme of infrared heating cage was simple,which was suitable for flying,and the schemes of heating chip and infrared heating cage + heating chip was more accurate,which was suitable for ground test.