李春林,王贵全,赵振明.航空相机载荷舱热环境分析[J].装备环境工程,2014,11(2):32-37. LI Chun-lin,WANG Gui-quan,ZHAO Zhen-ming.Thermal Environment Analysis of Aerial Camera Pod[J].Equipment Environmental Engineering,2014,11(2):32-37.
航空相机载荷舱热环境分析
Thermal Environment Analysis of Aerial Camera Pod
投稿时间:2013-12-29  修订日期:2014-01-13
DOI:10.7643/issn.1672-9242.2014.02.007
中文关键词:  航空相机  载荷舱  热环境  边界条件
英文关键词:aerial camera  aircraft pod  thermal environment  boundary condition
基金项目:
作者单位
李春林 北京空间机电研究所,北京100094 
王贵全 北京空间机电研究所,北京100094 
赵振明 北京空间机电研究所,北京100094 
AuthorInstitution
LI Chun-lin Beijing Institute of Space Mechanics & Electricity,Beijing100094, China 
WANG Gui-quan Beijing Institute of Space Mechanics & Electricity,Beijing100094, China 
ZHAO Zhen-ming Beijing Institute of Space Mechanics & Electricity,Beijing100094, China 
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中文摘要:
      目的详细分析航空相机主体热设计的关键边界条件--航空相机载荷舱的热环境。方法通过载荷舱的热平衡方程,分析影响载荷舱热环境的主要因素,系统地总结适用于工程应用的分析方法。结果对于辐射热环境需考虑大气透明度、地面状况等因素,对流热环境可采用Hilbert提出的经验表达式计算载荷舱背风面的对流换热系数,气动热环境采用Eckert参考焓法估算载荷舱的气动热是合适的,且宜采用电热防冰系统及热空气加热防结露系统。结论该研究结果是航空相机主体热设计的基础,适用于对各类航空相机载荷舱热环境分析和环境控制系统设计。
英文摘要:
      ObjectiveTo get the correct boundary conditions for thermal design of aerial camera.MethodsThermal environments of aerial camera pod were analyzed systematically.ResultsAccording to the analysis, calculation methods for radiative heat transfer should consider atmospheric transparency and ground conditions, convective heat transfer especially on the leeward side can be calculated by experience expression developed by Hilbert, aero-dynamic heat transfer can be estimated using the reference enthalpy method developed by Eckert, and ice accretion of outside surfaces and fogging on the view-port window were concluded. In addition, thermal control methods of anti-icing and anti-condensing were also discussed.ConclusionThe analysis results can be used as boundary conditions of aerial camera thermal design and such a research can be used for thermal analysis of other aerial camera pods.
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