基于环路热管的航天器可折叠辐射散热器设计  

Design of Collapsible Radiator for Spacecraft Based on Loop Heat Pipe

作　　者：钟思源 谢荣建[1] 程锦铭 文佳佳[1] ZHONG Siyuan;XIE Rongjian;CHENG Jinming;WEN Jiajia(Shanghai Institute of Technical Physics,Shanghai 200083,China;University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]上海理工大学,上海200093

出　　处：《航天器工程》2023年第6期102-110,共9页Spacecraft Engineering

摘　　要：航天器废热排放问题是制约其有效载荷容纳量增长的主要因素。文章针对目前可折叠辐射散热器折展比低的问题,设计基于环路热管的航天器可折叠辐射散热器,提出了一种基于对称六连杆Waldron机构设计的高折展比折叠方案,采用柔性环路热管作为热量收集和传递单元,实现辐射可动板间的柔性连接。通过对1/8等比样机的仿真数值模拟和试验研究,分析了基于环路热管的可折叠辐射散热器的传热特性。研究结果显示:该样机最大可传输200 W热量,展开后可获得更大的散热面积。The problem of spacecraft waste heat emission is the main factor restricting the growth of their payload accommodation capacity.A collapsible radiator for spacecraft based on loop heat pipe is designed and a novel scheme is proposed for a foldable radiator with a high folding ratio based on the Waldron mechanism to address the current problem of low packing ratio of collapsible radiator.Additionally,a flexible loop heat pipe is employed as a heat collection and transfer unit,enabling flexible coupling between the radiation plate and load.Mathematical models and tests are conducted to study the heat transfer characteristics of a 1/8 isometric prototype,and the research results show that the prototype can transfer up to 200 W of heat and can obtain larger area after deployment.

关 键 词：航天器热控 可折叠辐射器 环路热管 折展比 

分 类 号：TH765.2[机械工程—仪器科学与技术]