《万方数据-数字化期刊群》全文上网期刊
CNKI《中国学术期刊(网络版)》全文收录期刊
《中文科技期刊数据库》(维普网)全文收录期刊
超星期刊域出版平台、博看网全文收录期刊
日本科学技术振兴机构数据库收录

星载计算机的热效应预测分析及结构设计

王立国, 安天琪, 徐殿国, 王宏佳

王立国, 安天琪, 徐殿国, 王宏佳. 星载计算机的热效应预测分析及结构设计[J]. 航天器环境工程, 2013, 30(4): 365-369
引用本文: 王立国, 安天琪, 徐殿国, 王宏佳. 星载计算机的热效应预测分析及结构设计[J]. 航天器环境工程, 2013, 30(4): 365-369
Wang Liguo, An Tianqi, Xu Dianguo, Wang Hongjia. Analysis and prediction of the themal effect of space computer and its structural design[J]. Spacecraft Environment Engineering, 2013, 30(4): 365-369.
Citation: Wang Liguo, An Tianqi, Xu Dianguo, Wang Hongjia. Analysis and prediction of the themal effect of space computer and its structural design[J]. Spacecraft Environment Engineering, 2013, 30(4): 365-369.

星载计算机的热效应预测分析及结构设计

基金项目: 

民用航天预先研究项目(编号:C4120062301)

Analysis and prediction of the themal effect of space computer and its structural design

  • 摘要: 星上计算机对航天器控制性能与运行寿命有着极其重要作用,而温度又对计算机的性能有重要影响。利用SolidEdge及FloTHERM软件对星上计算机进行了热分析与设计,推导出SolidEdge及FloTHERM模型简化规则,用于解决仿真的精度与效率问题。基于PCB发热机理分析,给出空间环境试验条件要求的边界条件;依据线路板组件功耗及机箱所处的温度环境,建立各个线路板组件的FloTHERM热分析模型;给出了整机及各个PCB板的温度分布以及关键发热元器件的温度等热损耗分析结果。所做工作可为星上计算机布局设计及在轨故障预测提供参考准则。
    Abstract: In view of the important inffluence of the the themal behavior of the space computer on the control and lifetime of the spacecraft, the software SolidEdge is used, combined with FloTHERM to make thermodynamic analyses of the space computer. The simplifications ofthe model ofme space computer are made by SolidEdge and FloTHERM to guarantee me accuracy and the efficiency of the calculation. Based on aIl analysis of the heat source of the PCB, the boundary parameters are detemined and the themodynamic equation is solved. According to the power consumption of the PCBs and me PC box, the themodynamic model of every pans is built. The temperature distributions of every part and its key elements are obtained. The results provide some guidance for selecting design parameters and predicting failure of the space computer.
计量
  • 文章访问数:  11177
  • HTML全文浏览量:  5
  • PDF下载量:  16456
  • 被引次数: 0
出版历程

目录

    /

    返回文章
    返回