RT Journal Article
T1 Efficient hydrodynamic analysis for preliminary design of Floating Offshore Wind substructures
A1 Alonso Reig, Maria
A1 Mendikoa, Iñigo
A1 Touzon, Imanol
A1 Petuya, Victor
AB The cost of Floating Offshore Wind (FOW) is driven by the foundation, thus it can be reduced by optimising the floater design from the early stage. Most of the numerical tools for the platform design integrate radiation–diffraction theory-based software, but it can make the whole process very time-consuming since the preliminary design phases usually imply the analysis of a large number of designs. In order to accelerate the first stages of design, and consequently, achieve the foundation cost reduction, this study proposes an efficient methodology for the hydrodynamic added mass, radiation damping, and excitation loads calculation. The method is implemented for a semi-submersible platform, and it is verified against the radiation–diffraction commercial software AQWA. The methodology is validated through a comparative analysis of the response of ten different platforms, and it has shown that the hydrodynamic coefficients derived from either radiation–diffraction analysis or from the proposed method lead to equivalent conclusions. The maximum values of the platform's pitch angle and the nacelle acceleration are assessed, achieving a maximum deviation among the most critical designs of 3% and 17%, respectively. This methodology has demonstrated to provide with reasonable accuracy the dynamic behaviour of the offshore wind substructures achieving a significant computational cost reduction compared to the state-of-the-art methods, which enables to accelerate the optimisation process and thus, resulting in a more accurate floater preliminary design.
SN 0029-8018
YR 2023
FD 2023-10-01
LA eng
NO Alonso Reig , M , Mendikoa , I , Touzon , I & Petuya , V 2023 , ' Efficient hydrodynamic analysis for preliminary design of Floating Offshore Wind substructures ' , Ocean Engineering , vol. 285 , 115318 . https://doi.org/10.1016/j.oceaneng.2023.115318
NO Publisher Copyright: © 2023 Elsevier Ltd
NO Financial support received from the Spanish Government (Project PID2020-116176GB-I00) financed by MCIN/AEI/10.13039/501100011033 and the support through Project IT1480-22 provided the Regional Basque Government . The authors acknowledge TECNALIA and SENER for their support to the PhD thesis of María Alonso Reig. This work was funded by the Basque Government, Spain through the BIKAINTEK PhD support program [grant number 48-AF-W2-2019-00011]. Financial support received from the Spanish Government (Project PID2020-116176GB-I00) financed by MCIN/AEI/10.13039/501100011033 and the support through Project IT1480-22 provided the Regional Basque Government. The authors acknowledge TECNALIA and SENER for their support to the PhD thesis of María Alonso Reig. The authors thank Dr. Vincenzo Nava for taking the time to review this manuscript and for his valuable suggestions and feedback, which significantly improved the quality of this research article. This work was funded by the Basque Government, Spain through the BIKAINTEK PhD support program [grant number 48-AF-W2-2019-00011] .
DS TECNALIA Publications
RD 26 jul 2024