航天器环境工程2016，Vol.33Issue(4)：428-433,6.DOI:10.3969/j.issn.1673-1379.2016.04.016
大型空间展开机构常压高低温环境模拟试验系统研制
Design and experiment of an innovative simulation system for thermal environment with normal atmosphere pressure used for large-scale space deployable mechanism testing
摘要
Abstract
An innovative Thermal Environmental Simulation System (TESS) of reliability demonstration for testing large-scale space deployable mechanisms is developed and investigated experimentally. While maintaining the stable thermal boundary conditions, the TESS’s insulation chamber structure can adapt to a large temperature difference between the high and the low temperature environments, with two independent inner and outer frameworks connected by insulating glass fiber reinforced plastics in key nodes. A reasonable airflow distribution design ensures an excellent temperature uniformity of high and low temperature environments. The stable heat and cold source supply system can provide enough energy to achieve the target thermal environment. The dry nitrogen replacement system is established to obtain an ultra-low dew point temperature. The measurement and control system based on the PLC is adopted. Experimental results show that the temperature range, the temperature change rate, the temperature uniformity and the dew point of the TESS can meet the testing requirements totally and admirably.关键词
空间展开机构/温度环境模拟/气流组织/露点温度/试验验证Key words
space deployable mechanism/thermal environment simulation/airflow distribution/dew point temperature/experiment validation分类
信息技术与安全科学引用本文复制引用
张良俊,吴静怡,黄永华,徐世超,刘祎石,徐烈..大型空间展开机构常压高低温环境模拟试验系统研制[J].航天器环境工程,2016,33(4):428-433,6.基金项目
国家重大科技专项载人航天、探月工程及高分研制保障条件统筹建设项目；上海市科学技术委员会资助项目（编号06dz22105）。 （）
