多层柔性海底管道隆起屈曲有限元分析  

Upheaval buckling analysis of multilayer flexible submarine pipeline using finite element method

作　　者：魏斌 李明航 李兵 

机构地区：[1]中国石油集团石油管工程技术研究院,西安710065 [2]中国石油集团石油管工程技术研究院石油管材及装备材料服役行为与结构安全国家重点实验室,西安710065 [3]西安大学机械制造系统工程国家重点实验室,西安710049

出　　处：《中国科技论文》2017年第16期1862-1865,1906,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(51475356)

摘　　要：由于海床不平整以及高温服役条件,多层海洋柔性管道容易发生隆起屈曲。利用大型商业有限元分析软件ANSYS,建立多层柔性管道有限元模型,分析管道内液体温度、压力及埋泥深度3种因素对多层柔性管道隆起屈曲程度的影响。分析结果表明:对于多层柔性管道,管道内液体温度越高,管道隆起高度越高;管道内输送的液体压力升高将限制管道的隆起;埋泥深度越深,越限制管道的隆起。研究工作和分析结果可为海底管道铺设提供理论依据和设计参考。Due to the unevenness of the seabed and high temperature conditions,the multi-layered submarine flexible pipe is prone to upheaval buckling.In this paper,the finite element model of multi-layer flexible pipe was established by using commercial software ANSYS.The influences of the liquid temperature,pressure and the depth of buried pipe on the upheaval buckling degree of multi-layer flexible pipe were analyzed.The results show that for the multi-layer flexible pipe,the higher the liquid temperature in the pipe,the higher the height of the pipe upheaval buckling;the higher the pressure of the liquid delivered in the pipe will limit the upheaval buckling of the pipe;The research work and analysis results will provide theoretical basis and reference for submarine pipeline laying.

关 键 词：油气储运工程 海底管道 隆起屈曲 数值模拟 

分 类 号：TE973.92[石油与天然气工程—石油机械设备]