Z形折叠管充气展开过程数值模拟与试验  

SIMULATION AND EXPERIMENT OF DEPLOYMENT PROCESS OF INFLATABLE Z-FOLDED TUBES

作　　者：卫剑征[1,2] 杜星文[2] 谭惠丰[2] 赫晓东[2] 

机构地区：[1]哈尔滨工业大学材料科学与工程博士后流动站,哈尔滨150001 [2]哈尔滨工业大学复合材料与结构研究所,哈尔滨150080

出　　处：《力学与实践》2009年第3期16-22,共7页Mechanics in Engineering

基　　金：教育部新世纪人才计划项目

摘　　要：针对某型充气太阳能帆板的充气管展开过程,采用分段式充气体积控制模型,基于有限元方法模拟了Z形折叠管在空间零重力环境下充气展开过程,分析了管各折叠段内体积和压力的变化,讨论充气速率对展开动力学特性的影响,并与文献结果进行对比.建立了充气展开气浮导轨试验系统,进行了充气展开试验.结果表明充气速率对展开过程有明显影响,提高充气速率减缩因子可有效地降低管展开瞬时产生的冲击力作用.The inflatable deployment tube is a basic support component of space inflatable structures, and a Z-folded configuration is one of the basic folding ways of the inflatable deployment tube of the inflatable solar array discussed in this paper. A model of segments inflatable control volume for deployment process of inflatable tubes is proposed. The inflatable deployment of the Z-folded tube is simulated by finite element method under zero gravity condition. The variations of the volume and pressure in each folded segment are analyzed. Influence of inflation rate on deployment dynamic characteristics is discussed, and compared with those in literature. An inflatable deployment experiment on an air track is conducted. The results demonstrate that variations of inflation rate have a great influence on the deployment process, and increasing the reduction factor of the inflation rate can decrease the impact force action of the tube at the full deployment.

关 键 词：Z形折叠管 充气 展开动力学 气浮导轨 有限元法 

分 类 号：V414.9[航空宇航科学与技术—航空宇航推进理论与工程]