Dynamic response analysis of a fully coupled aerodynamic-hydrodynamic-mooring-anchor floating offshore wind turbine

被引：3
|
作者：
Qiao, Dongsheng [1 ]
Zhou, Yichen [1 ]
Xu, Binbin [2 ,3 ]
Qin, Jianmin [4 ]
Tang, Guoqiang [1 ]
Lu, Lin [1 ]
Ou, Jinping [1 ]
机构：
[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China
[2] CCCC First Harbor Engn Co, 3 Engn Co Ltd, Dalian 116011, Peoples R China
[3] CCCC First Harbor Engn Co Ltd, Tianjin 300461, Peoples R China
[4] Dalian Univ, Coll Civil Engn & Architecture, Dalian 116022, Liaoning, Peoples R China
来源：
OCEAN ENGINEERING | 2024年 / 312卷
基金：
中国国家自然科学基金;
关键词：
Floating offshore wind turbine; Fully coupled aerodynamic-hydrodynamic; mooring-anchor foundation; Anchor-chain-soil interaction; Equivalent stiffness and damping; BEHAVIOR; UPLIFT;
D O I：
10.1016/j.oceaneng.2024.119085
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Floating offshore wind turbine (FOWT) is restrained by the mooring system, and the motion response of FOWT leads to complex interaction among the anchor, chain, and soil. The conventional aerodynamic-hydrodynamicmooring model of FOWT typically assumes a fixed boundary constraint at the seabed for the mooring system, neglecting the interaction of anchor-chain-soil. The assumption affects the global responses of FWOT. This paper establishes a finite element model for the dynamic interaction of the anchor-chain-soil system based on the Coupled Eulerian-Lagrangian (CEL) method in Abaqus, introducing a method to approximate the interaction through equivalent stiffness and damping. Then, through joint simulation with OpenFast and Orcaflex, a fully coupled aerodynamic-hydrodynamic-mooring-anchor model of FOWT is developed to study the impact of the anchor foundation on the dynamic characteristic of FOWT. Compared with the new proposed aerodynamichydrodynamic-mooring-anchor model, it is found that the traditional model underestimates the maximum horizontal response of platform and overestimates the mooring line tension.
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收藏
页数：16
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