非典型圆形轨道空间光学遥感器外热流计算  

External Heat Flux on Space Optics Remote Sensor Working in Non-classical Circular Orbit

作　　者：胡日查[1] 郭亮[1] 刘春龙[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《计算机仿真》2015年第7期60-64,69,共6页Computer Simulation

摘　　要：针对某空间光学遥感器优化设计问题,为了给热分析及热试验提供准确信息和可靠的热边界条件,对非典型圆形轨道空间光学遥感器空间外热流进行计算,总结了三种外热流的理论计算方法,确定太阳辐射外热流是最主要影响因素。通过升交点赤经的遍历确定光学遥感器6个面极端外热流出现的轨道位置,计算了极端高/低外热流,并确定极端高温及极端低温工况出现的轨道位置和外热流。结果表明极端高温工况及极端低温工况出现的轨道升交点赤经分别为冬至点180°和夏至点300°。由于±Z面平均外热流大而且持续照射时间长不适合布置辐射散热板,而±X面最适合布置辐射散热板。In order to obtain accurate,reliable thermal boundary conditions for the thermal design,thermal analysis and thermal tests of a space optical remote sensor,the external heat fluxs of space optical remote sensor in nonclassical circular orbit are calculated. The calculating formulas of three kinds of external heat flux are summarized,the result shows that the solar radiation heat flux is the most important influencing factor. The orbit position where extreme heat flux on six faces of optical remote sensor emerges is found with different RAAN,extreme heat flux on the six faces and extreme working condition are confirmed. The result shows that orbital RAAN extreme working conditions emerging are December solstice 180°and June solstice 300°,±Z faces are not suitable for being radiatiors but ±X faces are suitable for.

关 键 词：空间光学遥感器 外热流 热分析 升交点赤经 

分 类 号：V447.3[航空宇航科学与技术—飞行器设计]