Alonso-Reig, MaríaMendikoa, IñigoPetuya, VictorPetuya, VictorQuaglia, GiuseppeParikyan, TigranCarbone, Giuseppe2024-07-242024-07-242023Alonso-Reig , M , Mendikoa , I & Petuya , V 2023 , Fast Frequency-Domain Based Tool for FOWT Platforms Preliminary Design . in V Petuya , G Quaglia , T Parikyan & G Carbone (eds) , Proceedings of I4SDG Workshop 2023 - IFToMM for Sustainable Development Goals . Mechanisms and Machine Science , vol. 134 MMS , Springer Science and Business Media B.V. , pp. 37-44 , 2nd IFToMM Workshop for Sustainable Development Goals, I4SDG 2023 , Bilbao , Spain , 22/06/23 . https://doi.org/10.1007/978-3-031-32439-0_5conference97830313243832211-0984https://hdl.handle.net/11556/2708Publisher Copyright: © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.An efficient frequency-domain numerical tool for the preliminary design of the floating offshore wind substructures is developed and validated against a time-domain state-of-the-art method. The tool is based on an existing simplified frequency-domain response model that has been improved through the coupling of two developed modules that perform an efficient hydrodynamic analysis compared to the radiation-diffraction analysis. The first module estimates the linear hydrodynamic coefficients by means of interpolation functions and the second module calculates the second-order hydrodynamic loads based on the Morison and Rainey force models. Both modules have been validated with radiation-diffraction analysis. The proposed tool enables a fast comparative analysis between many floater designs for a given wind turbine and identifies 1000 times faster than the state-of-the-art methods those that meet the predefined requirements.8enginfo:eu-repo/semantics/restrictedAccessconference output10.1007/978-3-031-32439-0_5Affordable and Clean EnergyClimate ActionFloating offshore windHydrodynamic LoadsPreliminary DesignSemi-submersible PlatformMechanics of MaterialsMechanical EngineeringSDG 13 - Climate ActionSDG 7 - Affordable and Clean Energyhttp://www.scopus.com/inward/record.url?scp=85161221662&partnerID=8YFLogxK