航天器太阳电池阵空间外热流环境模型及分析

Modelling and analysis of spacecraft external heat flux environment for the solar array

文章通过对航天器运行的空间外热流环境进行分析,给出太阳电池阵接收热流及其角系数的计算方法;对低地球轨道和地球同步轨道的地球阴影进行分析,得出太阳电池阵进出阴影的时刻以及轨道周期时间节点;通过对太阳电池阵的各部件有限元建模,计算出摇臂架、电池基板和铰链表面的热流载荷,并对比分析了不同轨道条件下热流载荷随轨道周期性的变化规律。

Based on the analysis of the space heat environment,the received heat flux and its angle factor of the solar array are calculated.The time points when the spacecraft enters and leaves the Earth’s shadow in orbit are calculated under the LEO and GEO conditions,respectively.The finite element analysis model is built for the solar array components such as the yoke,the panels and the hinge based on the simplified model of the spacecraft solar array.The periodic variation of the heat flux on the solar array is analyzed under different orbit conditions.