航天器帆板温度受火星热流的影响分析

Effects of the Mars Flux on the Solar Panel Temperature of the Spacecraft

火星热流对环火轨道航天器的太阳帆板温度有较大的影响。本文建立了火星反照率的数学模型,分析了火星红外辐射和反照热流变化时,太阳帆板在近火弧段和远火弧段阴影期各自的温度变化规律。研究表明,在不同的轨道高度下,火星红外辐射和反照热流对帆板的影响各不相同,存在一个帆板温度受较大影响的临界轨道高度。当轨道高度小于此临界轨道高度,火星红外辐射和反照热流对帆板温度场的影响极大,不能忽略;当轨道高度大于此临界轨道高度,火星红外辐射和反照热流对帆板温度场的影响有限,可以忽略,为后续火星探测提供了一定的参考。

The Mars flux has great influence on the solar panel temperature.This paper establishes a mathematical model of the Mars albedo flux and analyzes the variation of the solar panel temperature in the near Mars area and the far Mars area when the Mars infrared radiation and the Mars albedo change.The research indicates that the influence are different when the spacecraft is at different orbital heights.There exists a critical orbit height.When the orbit height is less than the critical height,the influence is very large,and when it is great than this critical height,the influence could be ignored.This research provids a reference for the future Mars exploration.