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ETFE气枕与ETFE薄膜性能高温环境试验研究
  • 期刊名称:空间结构
  • 时间:0
  • 页码:69-73
  • 语言:中文
  • 分类:TU375.1[建筑科学—结构工程] TG457.6[金属学及工艺—焊接]
  • 作者机构:[1]Space Structures Research Center, Shanghai Jiaotong University, Shanghai 200030, China
  • 相关基金:Foundation item: the National Natural Science Foundation of China (No. 50878128) and the Shanghai Aerospace Foundation (No. HTJ10-15)
  • 相关项目:大型空间可展索网天线张力索网分析理论与形面调整方法
中文摘要:

The stowing and deploying experiment was conducted for three 700 mm long thin-walled tubes,and the structural behavior characteristics parameters were measured clearly,including strain,deformation and wrapping moment.3D finite element models(FEM)were built subsequently and explicit dynamic method was used to simulate the stowing and deploying of the lenticular carbon fiber reinforced polymer(CFRP)thin-walled tubular space boom,which was designed as four-ply(45°/-45°/45°/-45°)lay-up.The stress and energy during the wrapping process were got and compared with different wrapping angular velocity,the reasonable wrapping angular velocity and effective method were conformed,and structural behavior characteristics were obtained.The results were compared and discussed as well,and the results show that the numerical results by 0.628 rad/s velocity agree well with the measured values.In this paper,the numerical procedure and experimental results are valuable to the optimization design of CFRP thin-walled tubular space boom and future research.

英文摘要:

The stowing and deploying experiment was conducted for three 700 mm long thin-walled tubes, and the structural behavior characteristics parameters were measured clearly, including strain, deformation and wrapping moment. 3D finite element models (FEM) were built subsequently and explicit dynamic method was used to simulate the stowing and deploying of the lenticular carbon fiber reinforced polymer (CFRP) thin-walled tubular space boom, which was designed as four-ply (45°/- 45°/45°/- 45°) lay-up. The stress and energy during the wrapping process were got and compared with different wrapping angular velocity, the reasonable wrapping angular velocity and effective method were conformed, and structural behavior characteristics were obtained. The results were compared and discussed as well, and the results show that the numerical results by 0.628 rad/s velocity agree well with the measured values. In this paper, the numerical procedure and experimental results are valuable to the optimization design of CFRP thin-walled tubular space boom and future research.

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