Ultimate Limit State Scour Risk Assessment of a Pentapod Suction Bucket Support Structure for Offshore Wind Turbine

Young-Jin Kim, Duc-Vu Ngo, Jang-Ho Lee and Dong-Hyawn Kim
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Young-Jin Kim: Department of Ocean Science and Engineering, Kunsan National University, Gunsan 54150, Korea
Duc-Vu Ngo: Department of Ocean Science and Engineering, Kunsan National University, Gunsan 54150, Korea
Jang-Ho Lee: School of Mechanical Convergence System Engineering, Kunsan National University, Gunsan 54150, Korea
Dong-Hyawn Kim: School of Architecture and Coastal Construction Engineering, Kunsan National University, Gunsan 54150, Korea

Energies, 2022, vol. 15, issue 6, 1-14

Abstract: Scour risk assessment considering reaction force at foundation was proposed and applied to newly developed pentapod suction bucket support structures for a 5.5 MW offshore wind turbine under ultimate limit state environmental load. Scour hazard was obtained according to scour depth by using an empirical formula, which is the function of marine environmental conditions such as significant wave height, significant period, and current velocity. Fragility of the pentapod support structure was evaluated using the bearing capacity limit state criterion under ultimate limit state load case. Scour risk was assessed by combining the scour hazard and the fragility. Finally, scour risk of the developed pentapod suction bucket support structure under ultimate limit state has been assessed.

Keywords: offshore wind turbine; suction bucket; pentapod suction bucket; scour; scouring fragility; scour risk (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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