北京航空航天大学学报 ›› 2012, Vol. 38 ›› Issue (6): 731-735.

• 论文 • 上一篇    下一篇

金属蜂窝板高温环境下的隔热性能试验与计算

  

  1. 1. 北京航空航天大学, 宇航学院, 北京 100191;
    2. 北京航空航天大学, 航空科学与工程学院, 北京 100191
  • 收稿日期:2011-04-01 出版日期:2012-06-30 发布日期:2012-06-30
  • 基金资助:
    国家自然科学基金资助项目(11002012,11172026)

Experiment and numerical simulation on heat-shielding properties of metallic honeycomb panel in high temperature environment

Zheng Liming, Wu Dafang, Wang Yuewu, Gao Zhentong   

  1. 1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2011-04-01 Online:2012-06-30 Published:2012-06-30

摘要: 采用红外辐射加热式气动热模拟试验系统,进行了高温环境下的金属蜂窝板隔热性能试验研究,试验温度最高达到800℃;采用有限元的方法进行了金属蜂窝板传热特性数值模拟,计算中考虑了蜂窝板内部金属蜂窝芯结构的导热,蜂窝腔内壁面间的辐射换热和蜂窝腔内空气的传热.研究结果显示,金属蜂窝板后表面的试验测试数据与数值模拟结果吻合的很好.金属蜂窝板在高达800℃高温热环境下的隔热性能数值计算和试验结果将为航天航空器的防热结构研究提供参考依据.

Abstract: Using the infrared radiation aerodynamic heating simulation test system, the heat-shielding properties of the metallic honeycomb panel were tested up to 800℃; Taking into consideration of the radicalization among honeycomb wall surfaces and the heat transfer of metal structure and air within honeycomb core cavity, the finite element model was established in the numerical simulation to calculate the heat-shielding properties of the metallic honeycomb panels. The experimental results agree well with the numerical simulation results. The experimental and calculated results for heat-shielding properties of the metallic honeycomb panel up to 800℃ provide an important basis for the safety design of high-speed aircrafts and vehicles.

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