应用数学和力学2013，Vol.34Issue(6)：552-563,12.DOI:10.3879/j.issn.1000-0887.2013.06.002
基于深海卷管铺设的海管椭圆度分析
Study on Ovalization of Submarine Pipe During Deep Water Reel-Lay
摘要
Abstract
Alstract:During the reel-lay installation in deep water,large deformation occurs on the pipe line,leading to ovalization,instability or even local buckling.Ovality theory was established based on strain-energy method and Ritz method.Also,finite element analysis was employed by software,ABAQUS.The results obtained from the former procedures were compared with those from modified Brazier and modified von Kárm(a)n,serving as a good verification of the former solution.In addition,intact and defective pipelines are separately simulated by ABAQUS,suggesting that ovality is subject to pipeline-diameter,wall-thickness,initial bending curvature and bending curvature,et al.The law between ovality and geometrical parameters is further obtained.The above research of ovality is of certain interest to reel-lay installation.关键词
椭圆度/弹塑性变形/弯曲曲率/能量法Key words
ovality/ elastic-plastic deformation/ bending curvature/ energy method分类
能源科技引用本文复制引用
张九菊,段梦兰,马建敏,胡显伟..基于深海卷管铺设的海管椭圆度分析[J].应用数学和力学,2013,34(6):552-563,12.基金项目
国家科技重大专项基金资助项目(2008ZX05056) （2008ZX05056）
国家自然科学基金资助项目(50979113) （50979113）
国家重点基础研究发展计划(973计划)资助项目(2011CB13702) （973计划）
