航天器主动热控制系统辐射散热的半物理仿真

Semi-physical Simulation of Radiation for Active Thermal Control System of Spacecraft

该文提出在主动式热控制系统的地面动态实验中用半物理仿真的方法模拟在轨热辐射环境和辐射散热器。文中给出了半物理仿真系统的设计方案,用伪组件代替辐射散热器连接在真实回路中,用虚拟组件在计算机中模拟真实的在轨热辐射环境和辐射散热器的运行,并通过测控系统控制伪组件的运行状态。文中给出了虚拟组件和伪组件的设计与实现。实验结果表明这种方案能够准确地模拟出热辐射环境对热控制系统运行的影响。

A semi - physical simulation method is proposed in this paper to simulate the on orbit thermal environment and the radiator for ground dynamic experiment of active thermal control system of spacecraft. The scheme of the semi - physical system is given, which uses a virtual radiator running in computer to simulate the thermal environment and radiator, and a pseudo radiator controled by measurement and control system to connect the real loop. The design and implementation of virtual radiator and pseudo radiator are also given. The experiment results indicate that the method can exactly simulate the response of thermal environment to the active thermal control system.