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http://dx.doi.org/10.9765/KSCOE.2016.28.2.92

Reliability Analysis of Tripod Support Structure for Offshore Wind Turbine using Stress Concentration Factor  

Lee, Sang Geun (Dept. of Ocean Science and Engineering, Kunsan National University)
Kim, Dong Hyawn (Dept. of Ocean Engineering, Kunsan National University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.28, no.2, 2016 , pp. 92-100 More about this Journal
Abstract
Reliability analysis of tripod support structure for offshore wind turbine was performed. Extreme distribution function of peak response due to wind and wave loads was estimated by applying peak over threshold(POT) method. Then, stress based limit state function was defined by using maximum stress of support structure which was obtained by multiplying beam stress and concentration factor. The reliability analysis result was compared when maximum stress was calculated from shell element. Reliability index was evaluated using first order reliability method(FORM).
Keywords
offshore wind turbine; tripod support structure; reliability analysis; first-order reliability method; stress concentration factor;
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