风浪载荷下不同线型脐带缆动力学仿真分析  

Dynamic simulation analysis of different linear dynamic umbilicalcables under wind and wave loads

作　　者：王文明[1] 武振宇 李志伟[2] 何令普 顾继俊[1] WANG Wenming;WU Zhenyu;LI Zhiwei;HE Lingpu;GU Jijun(College of Mechanical and Storage and Transportation Engineering,China University of Petroleum(Beijing),Beijing,102249,China;Changqing Oilfield No.4 Oil Production Plant,Jingbian,Shaanxi,718500,China)

机构地区：[1]中国石油大学(北京)机械与储运工程学院,北京102249 [2]中国石油长庆油田分公司第四采油厂,陕西靖边718500

出　　处：《天然气与石油》2021年第3期95-102,共8页Natural Gas and Oil

基　　金：国家自然科学基金“深海悬链线管中管的载荷传递特性及接触作用机理研究”(51309237)。

摘　　要：随着海洋油气向深海迈进,脐带缆的基础研究受到了广泛关注。通过对悬链线型、缓波型、陡波型三种脐带缆进行建模,得出了每种线型脐带缆的最大有效张力图、剪力图以及弯矩图,分析了在不同风浪载荷下脐带缆的动态响应。研究结果表明,缓波型与陡波型脐带缆虽然布局相对复杂,但是较悬链线型脐带缆可以有效降低顶端悬挂处的有效张力,浮力段的添加可以减小恶劣环境对触地点的影响;此外需要注意的是缓波型与陡波型脐带缆在浮力段部分会发生剪力突变,对脐带缆的安装产生影响。研究成果有助于设计人员了解脐带缆在不同线型下的动力学响应特性,为脐带缆线型设计与脐带缆张紧器的选型提供了理论依据。With the development of offshore oil and gas into the deepwater,the research of umbilical cable has attracted widespread attention.In this paper,the maximum effective tension diagram,shear diagram and bending moment diagram are derived from modelling of each of the three types of umbilical cables,namely catenary,lazy-wave,and steep-wave type.The dynamic response characteristics of these three typical umbilical cables under different wind and wave loadings are analyzed as well.The results show that among the three types of umbilical cables,the layout of lazy-wave and steep-wave are relatively complex.However,when compared with catenary umbilical cable,the effective tension at the top end of these two types of umbilical cables can be effectively reduced.Besides,the additional buoyancy section can reduce the impact of harsh environments on the contact points.In addition,it should be noted that the lazy-wave and steep-wave umbilical cables are subject to shear force mutation in the buoyancy section,which affects the installation of the umbilical cable.The research results facilitate better understanding of the dynamic response characteristics of the umbilical cable,and provides theoretical basis for the design of umbilical cables and selection of different types of umbilical cable tensioner.

关 键 词：动态脐带缆 悬链线型 缓波型 陡波型 海况等级 动态响应特性 

分 类 号：TE95[石油与天然气工程—石油机械设备]