中国空间科学技术

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载人航天器的发射窗口及太阳能帆板的最佳受晒

郗晓宁,吴瑞林,潘亮,倪寿虎   

  1. 长沙国防科技大学
  • 发布日期:1997-10-25

MANNED SPACECRAFT LAUNCHING WINDOW AND SOLAR ARRAY OPTIMUM SUNSHINE

Xi Xiaoning Wu Ruilin Pan Liang Ni Shouhu (National University of Defense Technology,Changsha 410073)   

  • Published:1997-10-25

摘要： 首先根据载人航天器轨道运行段的基本特征，利用球面三角公式推导了：①阳光方向与载人航天器太阳能帆板法向的最佳夹角公式；②圆轨道的受晒因子公式。然后根据理论分析，引入帆板的效率系数。最后借助于计算机代数ｍａｔｈｅｍａｔｉｃａ系统，建立了一种分析帆板最佳受晒的直观、清晰、简便的方法。所得的结论为确定载人航天器的发射窗口提供了依据。

关键词: 航天器, 发射窗口, 太阳电池阵, 最佳受晒, 数学分析

Abstract: In this paper,firstly,based on the basic features of spacecraft orbit,the formulae are deducted which are those of the optimum angle between the solar direction and the normal direction of solar array of spacecraft and the sunshine factor of circular orbit;Then,according to theoretical analysis,the coefficients of efficiency of the solar array are derived;Finally,having the aid of computer algebra system MATHEMATICA,a direct,clear and simple method is set,which can be used for analyzing the optimum sunshine of the solar array.The results may be of reference value to selection of launching window of a spacecraft.