Collision Simulation of a Floating Offshore Wind Turbine Considering Ductile Fracture and Hydrodynamics Using Hydrodynamic Plug-in HydroQus
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Published:2023-06-30
Issue:3
Volume:37
Page:111-121
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ISSN:1225-0767
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Container-title:Journal of Ocean Engineering and Technology
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language:en
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Short-container-title:J. Ocean Eng. Technol.
Author:
Yoon Dong HoORCID,
Choung JoonmoORCID
Abstract
This paper intends to introduce the applicability of HydroQus to a problem of a tanker collision against a semi-submersible type floating offshore wind turbine (FOWT). HydroQus is a plug-in based on potential flow theory that generates interactive hydroforces in a commercial Finite element analysis (FEA) code Abaqus/Explicit. Frequency response analyses were conducted for a 10MW capacity FOWT to obtain hydrostatic and hydrodynamic constants. The tanker was modeled with rigid elements, while elastic-plastic elements were used for the FOWT. Mooring chains were modeled to implement station keeping ability of the FOWT. Two types of fracture models were considered: constant failure strain model and combined failure strain model HC-LN model composed of Hosford-Coulomb (HC) model & localized necking (LN) model. The damage extents were evaluated by hydroforces and failure strain models. The largest equivalent plastic strain observed in the cases where both restoring force and radiation force were considered. Stress triaxiality and damage indicator analysis showed that the application of HC-LN model was suitable. It could be stated that applications of suitable failure strain model and hydrodynamics into the collision simulations were of importance.
Funder
Korea Energy Technology Evaluation and Planning
Ministry of Trade, Industry and Energy
Korea Environmental Industry & Technology Institute
Ministry of Environment
Publisher
The Korean Society of Ocean Engineers
Subject
Ocean Engineering,Safety, Risk, Reliability and Quality
Cited by
1 articles.
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