深水海底管道整体式止屈器性能数值模拟研究  

Numerical simulation of buckling-arresting performance of integralarresters for deep water submarine pipelines

作　　者：马维林[1,2] 张先胜 李效民[1] 王振兴 王双 杨永春[1,2] MA Weilin;ZHANG Xiansheng;LI Xiaomin;WANG Zhenxing;WANG Shuang;YANG Yongchun(College of Engineering,Ocean University of China,Qingdao 266100,China;Shandong Provincial Key Laboratory of Ocean Engineering,Ocean University of China,Qingdao 266100,China;Offshore Oil Engineering Co.,Ltd,Tianjin 300461,China;Changjiang Survey Planning Design and Research Limited Co.Ltd,Wuhan 430010,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]中国海洋大学山东省海洋工程重点实验室,山东青岛266100 [3]海洋石油工程股份有限公司,天津300461 [4]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《哈尔滨工程大学学报》2024年第10期1888-1895,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51609222,U1906233);山东省自然科学基金项目(ZR2022ME184);山东省重大科技创新工程项目(2019JZZY010801).

摘　　要：为了对比准静态和动态2种加载方式对整体式止屈器止屈行为的影响,本文利用ABAQUS有限元软件建立含不同尺寸止屈器的管道有限元模型,以更贴近现实管道服役状态的动态恒定压力外载荷对模型进行加载,并与准静态加载的结果进行对比,解释了整体式止屈器的动态加强机理,分析了整体式止屈器自身结构对动态增强的变化规律。研究表明,尺寸不一的整体式止屈器存在不同程度的动态增强现象,以整体式止屈器的准静态失效标准作为设计原则过于保守,今后设计应参考更为实际的动态环境载荷。In order to compare the influence of quasi-static and dynamic loading conditions on the buckling-arresting behavior of integral buckle arresters,the finite element software ABAQUS is used to build finite element pipe models with buckle arrestors of different sizes and load the dynamic constant pressure external load which is closer to the real pipeline service state.The calculation results are compared with the results of the quasi-static loading conditions.The dynamic strengthening mechanism of the integral buckle arresters is explained,and the change law of dynamic enhancement caused by the structure of the integral buckle arresters is analyzed.The study shows that the integral buckle arresters of different sizes have different degrees of dynamic enhancement.And it is too conservative to take the quasi-static failure standard of the integral buckle arresters as the design principle so that the design should refer to the more practical dynamic environmental load in the future.

关 键 词：屈曲传播 整体式止屈器 动态增强 数值模拟 海底管道 屈曲穿越 局部屈曲 穿越压力 

分 类 号：P756.2[天文地球—海洋科学]