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http://dx.doi.org/10.5574/IJOSE.2012.3.4.209

Study on Mooring System Design of Floating Offshore Wind Turbine in Jeju Offshore Area  

Kim, Hyungjun (Department of Naval Architecture and Ocean Engineering, Inha University)
Jeon, Gi-Young (Department of Naval Architecture and Ocean Engineering, Inha University)
Choung, Joonmo (Department of Naval Architecture and Ocean Engineering, Inha University)
Yoon, Sung-Won (Department of Naval Architecture and Ocean Engineering, Inha University)
Publication Information
International Journal of Ocean System Engineering / v.3, no.4, 2013 , pp. 209-217 More about this Journal
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;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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