Speaker
Description
South Korea's first floating offshore wind project off the coast of Ulsan is currently experiencing some delays, but the Ulsan municipality continues its efforts to become a global energy mecca. Given the highly variable wind environment of the turbine and the corresponding interrelated responses of the substructure, the structural platform of the floating offshore wind turbine, the interaction between the wind turbine and the floating support structure is a critical factor in the structural assessment. Therefore, time domain analysis is required by the International Electrotechnical Commission and Classification Societies. Although there are several numerical tools for time-domain structural analysis based on traditional coupled-motion analysis with floating wind turbines, the use of conventional time-domain analysis is still relatively inefficient and impractical for structural engineers to carry out structural strength and fatigue assessments for the large number of design load cases(DLCs) required due to the huge simulation time and computing resources required.In this presentation gives an overview of the engineering tools currently used in the floating offshore wind turbine industry and introduces the development of direct structural strength assessment of floating offshore wind turbine platforms developed by KR, which is an efficient and expeditious time-domain structural analysis approach that is practically applicable for ultimate strength assessment(ULS), including effective and practical buckling strength assessment.
References
(1) Guideline for Direct Strength Assessment on FOWT Platform, KR 2023
(2) Guideline for Floating Offshore Wind Turbine Platform, KR 2021
(3) IEC (2005) Wind turbines-Part 1: Design requirements. International standard, IEC-61400-1, International Electrotechnical Commission, Geneva
(4) IEC (2019a) Wind energy generation systems-Part 3-1: Design requirements for fixed offshore wind turbines. Technical Specification, IEC-61400-3-1, International Electrotechnical Commission, Geneva
(5) IEC (2019b) Wind energy generation systems — Part 3-2: Design requirements for floating offshore wind turbines. Technical Specification, IEC-61400-3-2, International Electrotechnical Commission, Geneva
| Keywords | Time domain, Direct Strength Assessment |
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