金星着陆器载荷舱热控系统设计研究  

Design and Research for Thermal Control System of Load Cabin of Venus Lander

作　　者：刘杰[1] 王安良[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100191

出　　处：《上海航天》2015年第2期17-21,27,共6页Aerospace Shanghai

摘　　要：针对金星高温环境,提出了一长寿命金星着陆器的载荷舱热控系统设计方案。研究了载荷舱热控系统的热载荷、载荷舱、制冷方案和热平衡。优化设计后的载荷舱结构承压性能不变,且质量减小,特别是在主动制冷失效时,在被动热控下可保证电子设备工作寿命大于2h,采用斯特林循环技术是着陆器实现长寿命的关键。基于初步的着陆器载荷舱构架,对热控系统进行了热平衡分析。研究结果表明:该热控系统设计方案能满足载荷舱在金星表面长期探测任务的需求。A design of the load cabin of a long-lived Venus lander was proposed according to the environment of Venus in this paper. The thermal load, the load cabin, refrigeration scheme and thermal balance of the thermal control system for the load cabin were studied. The optimum design of the load cabin structure had the same performance on bearing pressure and its mass was greatly reduced. Especially in the case of active cooling failure, the program could ensure the operation life of the electronic equipment for more than 2 h under passive thermal control. In terms of refrigeration scheme, the adoption of Stirling cycle technology was considered to be the key to the long life for lander. Based on the fulfillment of the preliminary framework of the load cabin of the lander, the thermal balance was analyzed on the thermal control system of the load cabin. The results showed that this design of the thermal control system would meet the need of long-term exploration mission of the load cabin on Venus.

关 键 词：金星着陆器 载荷舱 长寿命 制冷 斯特林循环 热控制系统 

分 类 号：V444.3[航空宇航科学与技术—飞行器设计]