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[1]高博　吴尚华　杨志勋　卢青针　阎军　岳前进.柔性管道抗径向挤压能力数值模拟[J].油气储运,2020,39(01):1-7.
　GAO Bo,WU Shanghua,YANG Zhixun,et al.Numerical simulation on resistance of flexible pipe to radial compression[J].Oil & Gas Storage and Transportation,2020,39(01):1-7.
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柔性管道抗径向挤压能力数值模拟

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 39 期数: 2020年01期 页码: 1-7 栏目: 出版日期: 2020-01-25
Title:

Numerical simulation on resistance of flexible pipe to radial compression

作者:

高博　吴尚华　杨志勋　卢青针　阎军　岳前进

Author(s):

GAO Bo;  WU Shanghua;  YANG Zhixun;  LU Qingzhen;  YAN Jun;  YUE Qianjin

关键词:

柔性管道; 有限元; 安装; 挤压; 骨架层; 大变形

Keywords:

flexible pipe;  finite element;  installation;  compression;  carcass;  large deformation

分类号:
O39; TE53
文献标志码:
A
摘要:

柔性管道在安装过程中会受到张紧器等安装设备的夹持作用，夹持力过小会引起管道外护套层滑脱，夹持力过大则会导致管道的径向挤压破坏。为预测柔性管道抗径向挤压能力，建立了柔性管道完整截面的三维有限元模型。对管道承受外压的骨架层结构进行径向挤压模拟，发现骨架层结构在加载过程中逐渐演变为含有4个塑性铰的活动机构，且在垂直于挤压方向的结构区域发生屈服时，结构的抗压刚度瞬间下降。进一步对柔性管道不同结构层结构的抗压能力进行分析，发现骨架层承压占比仅为整个结构的39.01％，安装过程中的抗挤压能力分析若仅考虑骨架层则过于保守，研究成果可为柔性管道抗压能力的预测提供参考。

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更新日期/Last Update: 2020-04-06