卫剑征, 杜星文, 谭惠丰, 赫晓东. Z形折叠管充气展开过程数值模拟与试验[J]. 力学与实践, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-043
引用本文: 卫剑征, 杜星文, 谭惠丰, 赫晓东. Z形折叠管充气展开过程数值模拟与试验[J]. 力学与实践, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-043
SIMULATION AND EXPERIMENT OF DEPLOYMENT PROCESS OF INFLATABLE Z-FOLDED TUBES[J]. MECHANICS IN ENGINEERING, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-043
Citation: SIMULATION AND EXPERIMENT OF DEPLOYMENT PROCESS OF INFLATABLE Z-FOLDED TUBES[J]. MECHANICS IN ENGINEERING, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-043

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

  • 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.

     

    Abstract: The inflatable deployment tube is a basic supportcomponent of space inflatable structures, and a Z-folded configuration isone of the basic folding ways of the inflatable deployment tube ofthe inflatable solar array discussed in this paper. A model of segments inflatable controlvolume for deployment process of inflatable tubes is proposed. Theinflatable deployment of the Z-folded tube is simulated by finite elementmethod under zero gravity condition. The variations of the volume and pressurein each folded segment are analyzed. Influence of inflation rate ondeployment dynamic characteristics is discussed, and compared with thosein literature. An inflatable deployment experiment on an air track isconducted. The results demonstrate that variations of inflation rate have agreat influence on the deployment process, and increasing the reductionfactor of the inflation rate can decrease the impact force action of the tube atthe full deployment.

     

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