复杂海洋载荷作用下深水海洋立管非线性动力响应分析  

Nonlinear dynamic response analysis of deepwater riser under complex ocean loads

作　　者：白雪峰 王璐[1] 方正 BAI Xue-feng;WANG Lu;FANG Zheng(College of Energy and Power,Dalian University of Technology,Dalian 116000,China)

机构地区：[1]大连理工大学能源与动力学院,辽宁大连116000

出　　处：《舰船科学技术》2022年第7期104-108,131,共6页Ship Science and Technology

摘　　要：立管长期在水面以下工作,除了时刻承受着风、浪、流等载荷作用,立管顶部还受上部平台运动的影响。基于Stokes波浪理论,运用Abaqus中的AQUA模块,建立TTR立管的有限元模型。考虑立管在顶张力、波浪载荷以及海上平台运动同时存在的情况下,对立管进行非线性动力响应分析。得到3种工况下立管的变形情况和各个参数对管内弯矩的影响,为工程实际中海洋立管分析提供理论基础。The riser works under the water surface for a long time. In addition to the loads of wind, wave and current,the top of the riser is also affected by the movement of the upper platform.Based on Stokes wave theory, the finite element model of TTR riser is established by using the aqua module in Abaqus. Considering the simultaneous existence of top tension, wave load and offshore platform motion, nonlinear dynamic response analysis of opposite pipe. The deformation of the riser and the influence of various parameters on the bending moment in the riser under three working conditions are obtained,which gives the analysis of marine riser in engineering practice a theoretical basis.

关 键 词：TTR立管 波浪理论 波浪载荷 动力响应 弯矩 

分 类 号：TE973[石油与天然气工程—石油机械设备]