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Study on Mooring System Design of Floating Offshore Wind Turbine in Jeju Offshore Area
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 Title & Authors
Study on Mooring System Design of Floating Offshore Wind Turbine in Jeju Offshore Area
Kim, Hyungjun; Jeon, Gi-Young; Choung, Joonmo; Yoon, Sung-Won;
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 Abstract
This paper presents a mooring design procedure for a floating offshore wind turbine. Offshore environmental data for Jeju are taken from KHOA (Korea Hydrographic and Oceanographic Administration) and used for the environmental conditions in numerical analyses. A semi-submersible-type floating wind system with a 5-MW-class wind turbine studied by the DeepCwind Consortium is applied. Catenary mooring with a studless chain is chosen as the mooring system. Design deliverables such as the nominal sizes of chain and length of the mooring line are decided by considering the long-term prediction of the breaking strength of the mooring lines where a 100-year return period is used. The designed mooring system is verified using a fatigue calculation based on rain-flow cycle counting, an S-N curve, and a Miner's damage summation of rule. The mooring tension process is obtained from time-domain motion analyses using ANSYS/AQWA.
 Keywords
Floating type platform;Semi-submersible mooring system;Catenary mooring;Fatigue life;Line tension;
 Language
English
 Cited by
1.
Fatigue damage analysis for a floating offshore wind turbine mooring line using the artificial neural network approach, Ships and Offshore Structures, 2017, 12, sup1, S288  crossref(new windwow)
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