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http://dx.doi.org/10.5574/KSOE.2015.29.5.342

Seismic Reliability Analysis of Offshore Wind Turbine Support Structure  

Lee, Gee-Nam (Ocean Science and Engineering, Kunsan National University)
Kim, Dong-Hyawn (Ocean Science and Engineering, Kunsan National University)
Publication Information
Journal of Ocean Engineering and Technology / v.29, no.5, 2015 , pp. 342-350 More about this Journal
Abstract
A seismic reliability analysis of the jacket-type support structure for an offshore wind turbine was performed. When defining the limit state function using the dynamic response of the support structure, numerous dynamic calculations should be performedin an approach like the FORM (first-order reliability method). This causes a substantial increase in the analysis cost. Therefore, in this paper, a new reliability analysis approach using the static response is used. The dynamic effect of the response is considered by introducing a new parameter called the peak response factor (PRF). The probability distribution of the PRF could be estimated using the peak value of the dynamic response. The probability distribution of the PRF was obtained for a set of ground motions. A numerical example is considered to compare the proposed approach with the conventional static-response-based approach.
Keywords
Offshore wind turbine; Support structure; Reliability analysis; Earthquake; Peak response factor; Response surface method; Jacket;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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