火星车低气压无风热环境模拟试验技术  

Low-pressure thermal environmental simulation test technology for Mars rover model under wind-free condition

作　　者：李振伟[1] 罗纪 韩放[1] 高庆华[1] 王晶[1] LI Zhenwei;LUO Ji;HAN Fang;GAO Qinghua;WANG Jing(Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China)

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2018年第4期382-387,共6页Spacecraft Environment Engineering

基　　金：国家重大科技专项工程

摘　　要：为模拟火星车工作时所处大温差、低气压环境,文章以自主研制的调温热沉系统和压力控制系统为依托,实现试验容器热沉系统温度在-135~27℃间任意快速调节,均匀性优于±5℃;试验容器内气体压力控制值与目标压力值之差在±10 Pa之内。在国内首次完成无风环境下的火星车温控模拟舱验证试验,为火星车热分析模型修正以及后续火星车有风热环境试验提供了参考。To simulate a wind-free high temperature and low pressure environment in which the Mars rover would work,based on the GN2 heat sink temperature regulation and a pressure control system,the goal is achieved for regulating the temperature of the heat sink system in a range of-135℃to 27℃,with the uniformity of the temperature better than±5℃.The bias between the testing pressure value and the target value of the vessel can be controlled to be less than±10 Pa with the pressure control system.The wind-free verification test of the Mars rover model has been implemented for the first time in China.The result provides a basis for updating the thermal analysis model of the Mars rover and the subsequent wind-loaded environmental test.

关 键 词：火星车 热环境 调温系统 压力控制 气体温度测量 

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]