基于微型空间相机的红外加热笼仿真与设计  

Simulation and Design of Infrared Heating Cage Based on Micro-Space Camera

作　　者：黄春玮 张旭升[1] 郭亮[1] HUANG Chunwei;ZHANG Xusheng;GUO Liang(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《红外技术》2024年第2期138-143,共6页Infrared Technology

基　　金：国家自然科学青年基金(61605203)。

摘　　要：在航天器热控技术领域,常采用红外加热笼模拟各表面的到达外热流,但随着模拟表面特征尺寸的逐渐变小,需要重新评估该模拟方法的合理性和准确性。本文基于某微型空间相机,以对外热流最为敏感的散热面为研究对象,开展红外加热笼仿真分析与优化设计的研究。采用有限元法建立红外加热笼-黑片热流计的系统仿真模型,分析了传统红外加热笼控制方法对模拟表面总到达能量和热流密度均匀性的影响。基于上述结果,通过适当扩大加热笼尺寸和调整热流计粘贴位置,提高模拟表面的热流密度均匀性,保证总到达能量满足保守设计原则。对比分析得出,优化设计前后散热面热流密度的统计方差由102.0下降至27.0、均匀性提升效果显著。本文研究内容也可为其他空间微小表面外热流的准确模拟提供参考、借鉴。In spacecraft thermal control technology,infrared heating cages are used to simulate the external heat flow reaching each surface;however,the rationality and accuracy of this method must be re-evaluated when the feature size of the simulated surface decreases progressively.In this study,simulation analysis and design optimization of infrared heating cages were conducted based on a micro-space camera with the most sensitive heat dissipation surface for external heat flow.The finite element method was used to establish a simulation model of the infrared heating cage black-sheet heat flow meter system,and the influence of the traditional infrared heating cage control method on the total arrival energy and heat flow density uniformity of the simulated surface was analyzed.The results show that the heat flow density uniformity of the simulated surface was improved by appropriately enlarging the heating cage and adjusting the position of the heat flow meter paste to ensure that the total arrival energy satisfied the conservative design principle.The statistical variances in the heat flow density of the radiator surface before and after the optimized design were 102.0 and 27.0,respectively,and the homogenization effect was significant.This study can be used as a reference for the accurate simulation of heat flows on other tiny space surfaces.

关 键 词：红外加热笼 微型空间相机 黑片热流计 热流密度均匀性 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]