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A Study on the Suitability of Suction Caisson Foundation for the 5Mw Offshore Wind Turbine  

Kim, Yong-Chun (포항공과대학교 풍력특성화대학원)
Chung, Chin-Wha (포항공과대학교 풍력특성화대학원)
Park, Hyun-Chul (포항공과대학교 풍력특성화대학원)
Lee, Seunug-Min (포항공과대학교 풍력특성화대학원)
Kwon, Dae-Yong (포항공과대학교 풍력특성화대학원)
Shi, Wei (포항공과대학교 기계공학과)
Publication Information
New & Renewable Energy / v.6, no.3, 2010 , pp. 47-54 More about this Journal
Abstract
Foundation plays an important role in the offshore wind turbine system. Different from conventional foundations, the suction caisson is proven to be economical and reliable. In this work, three-dimensional finite element method is used to check the suitability of suction caisson foundation. NREL 5MW wind turbine is chosen as a baseline model in our simulation. The maximum overturning moment and vertical load at the mudline are calculated using FAST and Bladed. Meanwhile the soil-structure interaction response from our simulation is also compared with the experiment data from Oxford university. The design parameter such as caisson length, diameter of skirt and spacing of multipod are investigated. Accordingly based on these parameters suggestions are given to use suction caisson foundations more efficiently.
Keywords
Suction Caisson; Offshore wind turbine; FE-calculation; Moment loading; soil-structure interaction;
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