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有限元法在空间飞行器天线反射器热分析中的应用

张立华   

  1. 北京空间飞行器总体设计部
  • 发布日期:1999-02-25

Application of Finite Element Method in the Thermal Analysis of Spacecraft Antenna Reflector

Zhang Lihua (Beijing Institute of Spacecraft System Engineering,Beijing 100086)   

  • Published:1999-02-25

摘要: 有限元方法是求解对热稳定性要求较高的空间飞行器部件温度场的一种行之有效的方法。文章给出了空间飞行器天线反射器热分析的有限元求解方法,应用有限元法计算了某卫星抛物面天线反射器的在轨稳态和瞬态温度场,为进一步的在轨热变形计算以及热控方案的选择提供了必要的温度数据。

关键词: 热分析, 有限元方法, 抛物面反射器

Abstract: The finite element method is an attractive means for the thermal analysis of spacecraft components with high thermal stability requirements.The application of finite element method in the thermal analysis of spacecraft antenna reflector is discussed.The on orbit steady and transient temperature profiles of a spacecraft parabolic antenna reflector are calculated by using finite element method.The necessary temperature data were provided for the thermal distortion analysis and the selection of the thermal control measures.