宇航学报

宇航学报 ›› 2018, Vol. 39 ›› Issue (4): 457-463.doi: 10.3873/j.issn.1000-1328.2018.04.013

• 环境试验与器件 • 上一篇    下一篇

辐射器展开角度对航天器热控能力影响的研究

刘欣，梁新刚   

  1. 1.清华大学航天航空学院，北京 100083；2.中国运载火箭技术研究院，北京 100076
  • 收稿日期:2017-08-21 修回日期:2017-12-24 出版日期:2018-04-15 发布日期:2018-04-25
  • 基金资助:

    国家自然科学基金(51376101,51621062)

Study on Influence of Radiator Deployment Angle on Spacecraft Thermal Control

LIU Xin, LIANG Xin gang   

  1. 1. School of Aerospace, Tsinghua University, Beijing 100083, China; 2. China Academy of Launch Vehicle Technology, Beijing 100076, China
  • Received:2017-08-21 Revised:2017-12-24 Online:2018-04-15 Published:2018-04-25

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摘要：

为了在有限的结构尺寸下提高航天器热控系统的散热能力，提出与流体回路耦合的可展开式辐射器热控方案，建立可展开式辐射器空间散热模型，分析辐射器不同展开角度下系统的热控特性。结果表明，随着辐射器展开角度的变化，辐射器吸收的空间热流也随之发生变化，并最终决定热控回路的流量分配。在工程应用中，基于热控流体回路，通过调节可展开式辐射器的展开角度，可以有效提高航天器热控系统的能力范围。

关键词: 可展开式辐射器, 流体回路, 辐射, 热控

Abstract:

In order to improve the heat dissipation capacity of a spacecraft thermal control system with limited structure size, a thermal control scheme of a deployable radiator coupled with liquid loop is proposed, and the deployable radiator heat dissipation model is established. The thermal control characteristics of the system are analyzed under different deployment angles of the radiator. The results show that as the deployment angle of the radiator changes, the space heat flux absorbed by the radiator also changes, and finally determines the liquid distribution of the thermal control loop. In the engineering applications, based on the thermal control liquid loop, the adaptability of the spacecraft thermal control system can be effectively improved by adjusting the deployment angle of the deployable radiator.

Key words:  Deployable radiator, Liquid loop, Radiation, Thermal control

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