嫦娥一号卫星热设计及计算分析

嫦娥一号卫星整星主结构以东方红三号卫星平台为基础。由于其复杂的飞行阶段和飞行姿态、以及月球表面特殊的温度分布,卫星表面的外热流非常复杂、变化剧烈,给整星的热控设计带来很大困难,使得整星的热控方案与东方红三号卫星有很大不同。文章着重分析了卫星的特点,并且给出了主要的热控设计方案,最后给出了整星的热分析模型,并对计算结果进行了分析。分析结果表明目前的设计方案满足了卫星在各种工况下的温度指标,实现了总体提出的热控要求。

Thermal Design and Numerical Results of Chang'e-10rbiter

Chang'e-1 orbiter is built based on the DFH-3 platform.The complicated flight process and multifold flight attitudes,especially the special temperature environment on the moon surface, make the orbiter surface thermal flux vary acutely and bring high difficulty to thermal design.In com- parison with DFH-3 satellite,the lunar orbiter has its unique characters in thermal control subsys- tems.The thermal control characteristics are analyzed especially in this paper.Then the thermal con- trol system for Chang' e-1 is described,and the thermal model and the numerical results are ana- lyzed.The results indicate that the thermal control design can keep the equipments temperature within the desired range.