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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Young-Jin Kim & Duc-Vu Ngo & Jang-Ho Lee & Dong-Hyawn Kim, 2022. "Ultimate Limit State Scour Risk Assessment of a Pentapod Suction Bucket Support Structure for Offshore Wind Turbine," Energies, MDPI, vol. 15(6), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:6:p:2056-:d:769281
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    References listed on IDEAS

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    1. Duc-Vu Ngo & Young-Jin Kim & Dong-Hyawn Kim, 2022. "Seismic Fragility Assessment of a Novel Suction Bucket Foundation for Offshore Wind Turbine under Scour Condition," Energies, MDPI, vol. 15(2), pages 1-22, January.
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    Cited by:

    1. Duc-Vu Ngo & Young-Jin Kim & Dong-Hyawn Kim, 2023. "Risk Assessment of Offshore Wind Turbines Suction Bucket Foundation Subject to Multi-Hazard Events," Energies, MDPI, vol. 16(5), pages 1-13, February.
    2. Gee-Nam Lee & Duc-Vu Ngo & Sang-Il Lee & Dong-Hyawn Kim, 2023. "Fatigue Life Convergence of Offshore Wind Turbine Support Structure According to Wind Measurement Period," Energies, MDPI, vol. 16(7), pages 1-14, April.

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    1. Gee-Nam Lee & Duc-Vu Ngo & Sang-Il Lee & Dong-Hyawn Kim, 2023. "Fatigue Life Convergence of Offshore Wind Turbine Support Structure According to Wind Measurement Period," Energies, MDPI, vol. 16(7), pages 1-14, April.
    2. Duc-Vu Ngo & Young-Jin Kim & Dong-Hyawn Kim, 2023. "Risk Assessment of Offshore Wind Turbines Suction Bucket Foundation Subject to Multi-Hazard Events," Energies, MDPI, vol. 16(5), pages 1-13, February.

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