红外加热笼覆盖系数对热流均匀性的影响研究  

Influence of Infrared Heating Cage Coverage Coefficient on Flux Uniformity

作　　者：杨晓宁[1] 孙玉玮[1] 

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器工程》2008年第5期38-41,共4页Spacecraft Engineering

摘　　要：通过设定红外加热笼与卫星表面之间不同距离,改变加热笼的覆盖系数,仿真模拟了卫星表面到达热流的分布,研究了加热笼的覆盖系数对卫星表面到达热流密度均匀性的影响,分析结果表明:当加热笼距离卫星表面100mm以上,选取覆盖系数大于0.06的加热笼,即可满足到达卫星表面热流的均匀性要求。The distribution of flux on spacecraft surface is simulated by setting, different distances between infrared heating cage and spacecraft surface ＆ changing the coverage coefficient of infrared heating cage. Moreover, the effect of flux uniformity on spacecraft surface is analyzed resulting from cover coefficient of infrared heating cage. The results indicate that when the distance between infrared heating cage and spacecraft surface is more than 100mm, it can be met the equirement of flux uniformity on spacecraft surface if the selected coverage coefficient of infrared heating cage is higher than 0. 06.

关 键 词：卫星 真空 热试验 红外加热笼 覆盖系数 热流均匀性 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]