海底管道防护垫水下自动布放装置框架结构有限元分析研究  

Structural Finite Element Analysis Study of Underwater Automatic Matress Release System for Oil and Gas Pipeline Protection Structures

作　　者：陈祎 姜哲 张锦飞[2] 罗高生 王欢欢 陈钊辉 CHEN Yi;JIANG Zhe;ZHANG Jinfei;LUO Gaosheng;WANG Huanhuan;CHEN Zhaohui(CNOOC Energy Development Equipment&Technology Co.,Ltd.,Tianjin 415499,China;College of Engineering Science and Technology,Shanghai Ocean University,Shanghai Engineering Research Center of Hadal Science and Technology,Shanghai 201306,China;Shanghai Jiao Tong University,Ocean Underwater Engineering Scientific Research Institute Co.,Ltd.,Shanghai 200231,China)

机构地区：[1]中海油能源发展装备技术有限公司,天津415499 [2]上海海洋大学工程学院上海深渊科学工程技术研究中心,上海201306 [3]上海交通大学海洋水下工程科学研究院有限公司,上海200231

出　　处：《海洋工程装备与技术》2024年第1期82-89,共8页Ocean Engineering Equipment and Technology

基　　金：中海油能源发展“海底管道预防性维修技术研究与应用”项目(编号HFKJ-ZDGG-ZB-2021-12);上海市科委创新行动计划“6000m深海精细探测技术与装备研发及应用”项目(编号:20dz1206500)。

摘　　要：海床受洋流、潮汐和波浪的冲击,带来淤泥、沙子和砾石,改变了海底地貌和管道周围海床的形态。这些变化和沉积物对海底管缆造成了损坏。为减少这些损害,常放置新型高分子复合保护垫来覆盖水下管缆等结构。本研究提出了一种新型的水下布放装置,对其进行了全系统设计、系统开发和测试,旨在解决现有维修方式成本高、效率低、经济效益差的问题。本文使用NX Nastran求解器对模型进行静态分析,再用Femap软件对布放装置框架结构计算结果进行后处理,分析研究了水下作业和水面布放两种工况。结果表明,该布放装置符合结构设计要求,同时也为优化装置结构提供了重要数据。Underwater pipes and pipelines are laid on the seabed for a long period of time,including pipelines and cables on the seabed.The seabed is subject to currents,tides and waves,which bring silt,sand and gravel,changing the geomorphology of the seabed and the morphology of the seabed around the pipelines.These changes and deposits cause damage to submarine pipelines and cables.To minimize these damages,the placement of new polymer composite protective mats is often used to cover structures such as submarine pipes and cables.In this study,a novel underwater placement device is proposed,for which full system design,system development and testing have been carried out with the aim of solving the problems of high cost,low efficiency and poor economic efficiency of the existing repair methods.In this paper,the static analysis of the model is carried out by using NX Nastran solver,after the finite element static analysis by NX Nastran solver.The results of the frame structure calculation of the deployment device are then post-processed and analyzed by Femap software to study the two working conditions of the underwater operation and surface deployment.The results show that the deployment device meets the structural design requirements,and also provides important data for optimizing the structure of the device.

关 键 词：海底管道防护垫 水下自动布放装置 NXNastran 有限元分析 结构强度 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置] TE94[自动化与计算机技术—控制科学与工程]