Hydrodynamic Response of A Fully Coupled TLP Hull-TTR System with Detailed Modeling of A Hydraulic Pneumatic Tensioner and Riser Joints  

作　　者：HAO Shuai YU Yang YU Jian-xing YUAN Zhi-ming XU Li-xin 

机构地区：[1]Maritime College,Tianjin University of Technology,Tianjin 300384,China [2]State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China [3]Tianjin Key Laboratory of Port and Ocean Engineering,Tianjin University,Tianjin 300072,China [4]Department of Naval Architecture,Ocean&Marine Engineering,University of Strathclyde,Glasgow G40LZ,UK

出　　处：《China Ocean Engineering》2022年第3期451-463,共13页中国海洋工程（英文版）

基　　金：The research was financially supported by the National Natural Science Foundation of China for Youth(Grant No.51609169);Guangxi Science and Technology Major Project(Grant No.Guike AA17292007);the National Key R&D Program of China(Grant No.2018YFC0310502);National Natural Science Foundation of China(Grant No.51779173);China Scholarship Council(CSC).

摘　　要：Tension Leg Platform(TLP)in deepwater oil and gas field development usually consists of a hull,tendons,and top tension risers(TTRs).To maintain its top tension,each TTR is connected with a tensioner system to the hull.Owing to the complicated configuration of the tensioners,the hull and TTRs form a strong coupled system.Traditionally,some simplified tensioner models are applied to analyze the TLP structures.There is a large discrepancy between their analysis results and the actual mechanism behaviors of a tensioner.It is very necessary to develop a more detailed tensioner model to consider the coupling effects between TLP and TTRs.In the present study,a fully coupled TLP hull-TTR system for hydrodynamic numerical simulation is established.A specific hydraulic pneumatic tensioner is modeled by considering 4 cylinders.The production TTR model is stacked up by specific riser joints.The simulation is also extended to analyze an array of TTRs.Different regular and irregular waves are considered.The behaviors of different cylinders are presented.The results show that it is important to consider the specific configurations of the tensioner and TTRs,which may lead to obviously different response behaviors,compared with those from a simplified model.

关 键 词：top tension riser(TTR) fully coupled hull-tendon-TTR-tensioner model hydraulic pneumatic tensioner hydrodynamic response 3D potential flow theory 

分 类 号：P75[天文地球—海洋科学] U674.38[交通运输工程—船舶及航道工程]