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Ocean Systems Engineering Volume 12, Number 4, December25 2022 , pages 413-437 DOI: https://doi.org/10.12989/ose.2022.12.4.413 |
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Feasibility study for wrap-buoy assisted wet-tow and stepwise installation of mono-bucket foundation for 15 MW offshore wind turbine |
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Ikjae Lee and Moohyun Kim
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| Abstract | ||
| An innovative concept for wet-transportation and stepwise installation of mono-bucket foundation for 15 MW offshore wind turbine is proposed. Case studies for two different mono-bucket and wrap-buoy dimensions are conducted and their hydrostatic and hydrodynamic performances are compared for both wet-towing and lowering operations. The intact stability and transient responses are analyzed in detail for various stages of lowering operation. Wave-induced motion statistics during wet tow in sea state 4 (highest operational window) are checked. The proposed concept is found to be feasible and can be an alternative cost-effective solution without using heavy-lift crane vessel in practice. | ||
| Key Words | ||
| acoustic shackle; intact stability; segmented wrap buoy; stepwise installation; transient response; vertical wet tow; without crane vessel | ||
| Address | ||
| Ikjae Lee and Moohyun Kim: Department of Ocean Engineering, Texas A&M University, College Station, TX, 77845, USA | ||
