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http://dx.doi.org/10.5916/jkosme.2014.38.9.1075

The study on substructure design and analysis for 5MW offshore wind turbine  

Sun, Min-Young (Korea Marine Equipment Research Institute)
Lee, Sung-Bum (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Lee, Ki-Yeol (Shipbuilding & Marine Technical Manpower Agency, Kunsan National University)
Moon, Byung-Young (Department of Naval Architecture, Kunsan National University)
Abstract
This study aims at dedicating to relevant technology fields by suggesting design methods of structures and estimating their safety in relation to substructure for offshore wind power requiring high safety to various environment conditions. Especially, with respect to 5MW Offshore Wind Power System, this study will provide information about major wind directions and duration in combination with the developing wave climate at the test field. Therefore, connections between wind fields and approaching wave trains will be estimated and their intensity, direction and time shift will be pointed out. Furthermore, the local pressure distribution of breaking waves will be investigated by physical and numerical modeling. The currently applied structural and fatigue assessment of support structures for offshore wind energy converters is based on common design rules. Normally, constructions in structural engineering are treated as limited, single structures. This means that varying aspects of manufacturing are considered by high safety factors.
Keywords
Substructure; Wind Turbine; CFD Analysis; Safety Factor; Offshore Wind Power; Stability Design;
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