航天器环境工程2026，Vol.43Issue(3)：177-184,8.DOI:10.12126/see.2025125
空间激光通信机热设计仿真与试验验证
Thermal design,simulation,and experimental validation for a space laser communication terminal
摘要
Abstract
A space laser communication terminal is characterized by a compact structure,a high degree of electronic integration,and high internal heat flux density,all of which pose strict requirements for its thermal control design.To satisfy the differentiated temperature requirements of multiple high-power devices and printed circuit board(PCB)chips,a comprehensive thermal control strategy combining differentiated heat dissipation paths,customized heat sinks,and a multi-level heat dissipation system was proposed.A finite element thermal model of the communication terminal and the satellite cabin was established to predict the temperature distributions of critical components under extreme thermal boundary conditions.Subsequently,a thermal vacuum test was conducted to validate the thermal design.The results showed that the maximum temperature deviation between the experimental and simulated results was 7.1%,well within the allowable engineering tolerance.In addition,the temperatures of all devices satisfy the specified thermal control requirements.These results demonstrate the effectiveness of the proposed thermal design and provide a reference for similar space electronic products.关键词
激光通信机/热控设计/热分析/试验验证Key words
space laser communication terminal/thermal control design/thermal analysis/experimental verification分类
航空航天引用本文复制引用
李涛,邹天琦,姜广文,杨森,穆猷,秦德金,马奕新,王晨洁,秦磊,王田..空间激光通信机热设计仿真与试验验证[J].航天器环境工程,2026,43(3):177-184,8.基金项目
陕西省自然科学基金项目(编号:2025JC-YBQN-870) （编号:2025JC-YBQN-870）
