| 空间相机热设计中的极端工况确定 |
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| 引用本文： | 韩冬,吴清文,陈立恒,黎明.空间相机热设计中的极端工况确定[J].光学技术,2009,35(6). |
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| 作者姓名： | 韩冬 吴清文 陈立恒 黎明 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,空间光学部,长春,130033;中国科学院,研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所,空间光学部,长春,130033 |
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| 摘 要： | 针对具有多姿态变化特点的空间相机,提出了考虑太阳辐射的到达外热流和吸收外热流两种情况下的极端工况确定方法和计算流程。根据辐射学的基本理论,并结合相机的结构特点,推导出了相机外表面总太阳辐射流的计算公式;根据相机进出地影的情况和太阳常数分别建立了相应矩阵,并进行了有关矩阵的运算和变换;借助工具软件Matlab求解得到了投落到相机外表面的总太阳辐射外热流极值,并在此基础上确定出该相机的极端工况;将此工况输入到I-DEAS/TMG仿真环境中进行仿真分析,验证了此方法的正确性。该计算方法同样适用于其它类型的相机,具用通用价值。
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| 关 键 词： | 空间相机 太阳辐射外热流 热设计 极端工况 |
Determination of extreme working conditions for attitude-varied space camera in thermal design |
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| HAN Dong,WU Qing-wen,CHEN Li-heng,LI Ming.Determination of extreme working conditions for attitude-varied space camera in thermal design[J].Optical Technique,2009,35(6). |
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| Authors: | HAN Dong WU Qing-wen CHEN Li-heng LI Ming |
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| Institution: | 1.Changchun Institute of Optics;Fine Mechanics and Physics;Chinese Academy of Sciences;Changchun 130033;China;2.Graduate School of Chinese Academy of Sciences;Beijing 100039;China |
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| Abstract: | Extreme working conditions of thermal design for a attitude-varied space camera are determined by means of the calculation of incident heat flux or absorbed heat flux.According to the theory of radiometry and characteristic of the camera,formulas about solar-heat-flux on the camera surface are derived,relevant matrix are created and operated based on the solar flux and the position relation between the camera and the earth shadow,the extreme value of total amount of solar-heat-flux is solved by Matlab softw... |
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| Keywords: | space camera solar heat flux thermal design extreme working conditions |
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