Global lateral buckling analysis of idealized subsea pipelines

作     者：刘润 刘文彬 吴新利 闫澍旺 LIU Run;LIU Wen-bin;WU Xin-li;YAN Shu-wang

作者机构：State Key Laboratory of Hydraulic Engineering Simulation and Safety(Tianjin University) School of Engineering DesignPennsylvania State UniversityUniversity Park 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2014年第21卷第1期

页      面：416-427页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 082003[工学-油气储运工程] 

基　　金：Project(51021004)supported by Innovative Research Groups of the National Natural Science Foundation of China Project(NCET-11-0370)supported by Program for New Century Excellent Talents in Universities of China Project(40776055)supported by the National Natural Science Foundation of China Project(1002)supported by State Key Laboratory of Ocean Engineering Foundation,China 

主　　题：pipeline high order lateral buckling analytical solution finite element analysis influence factors 

摘      要：In order to avoid the curing effects of paraffin on the transport process and reduce the transport difficulty,usually high temperature and high pressure are used in the transportation of oil and *** differences of temperature and pressure cause additional stress along the pipeline,due to the constraint of the foundation soil,the additional stress can not release freely,when the additional stress is large enough to motivate the submarine pipelines *** this work,the energy method is introduced to deduce the analytical solution which is suitable for the global buckling modes of idealized subsea pipeline and analyze the relationship between the critical buckling temperature,buckling length and amplitude under different high-order global lateral buckling *** obtain a consistent formulation of the problem,the principles of virtual displacements and the variation calculus for variable matching points are *** finite element method based on elasto-plastic theory is used to simulate the lateral global buckling of the pipelines under high temperature and *** factors influencing the lateral buckling of pipelines are further *** upon some actual engineering projects,the finite element results are compared with the analytical ones,and then the influence of thermal stress,the section rigidity of pipeline,the soil properties and the trigging force to the high order lateral buckling are *** method of applying the small trigging force on pipeline is reliable in global buckling numerical *** practice,increasing the section rigidity of a pipeline is an effective measure to improve the ability to resist the global buckling.