Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction

As a result of wind power’s expansion over the globe, offshore wind turbines (OWTs) are being projected in seismic prone areas. In parallel, the industry develops increasingly larger and more powerful generators. Many of the seismic response analyses of wind turbines conducted so far only consider s...

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Autores principales:	Cristina Medina, Guillermo M. Álamo, Román Quevedo-Reina
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	offshore wind turbines soil-structure interaction seismic loading monopile structural response Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/e2b044acaf60475e86a2578ca3399309
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spelling	oai:doaj.org-article:e2b044acaf60475e86a2578ca33993092021-11-25T18:05:05ZEvolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction10.3390/jmse91112852077-1312https://doaj.org/article/e2b044acaf60475e86a2578ca33993092021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1285https://doaj.org/toc/2077-1312As a result of wind power’s expansion over the globe, offshore wind turbines (OWTs) are being projected in seismic prone areas. In parallel, the industry develops increasingly larger and more powerful generators. Many of the seismic response analyses of wind turbines conducted so far only consider smaller units. In this paper, a finite element substructuring model in frequency domain is used to compute the seismic response of four reference OWTs from 5 to 15 MW founded on monopiles embedded in several homogeneous soil profiles with shear wave velocities from 100 to 300 m/s and subjected to different accelerograms. The foundation behaviour is obtained through a continuum model including kinematic and inertial interaction. The relevance of soil-structure interaction and main trends of the seismic response of OWTs are inferred from the presented results. Although the seismic maximum bending moments increase with the size of the OWT system, their relevance with respect to the ones produced by design loads decreases as the turbine gets bigger. The same effect is observed for the shear forces if the soil is soft enough. The inclusion of SSI effects almost duplicates the seismic response when compared to the rigid base scenario.Cristina MedinaGuillermo M. ÁlamoRomán Quevedo-ReinaMDPI AGarticleoffshore wind turbinessoil-structure interactionseismic loadingmonopilestructural responseNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1285, p 1285 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	offshore wind turbines soil-structure interaction seismic loading monopile structural response Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	offshore wind turbines soil-structure interaction seismic loading monopile structural response Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Cristina Medina Guillermo M. Álamo Román Quevedo-Reina Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
description	As a result of wind power’s expansion over the globe, offshore wind turbines (OWTs) are being projected in seismic prone areas. In parallel, the industry develops increasingly larger and more powerful generators. Many of the seismic response analyses of wind turbines conducted so far only consider smaller units. In this paper, a finite element substructuring model in frequency domain is used to compute the seismic response of four reference OWTs from 5 to 15 MW founded on monopiles embedded in several homogeneous soil profiles with shear wave velocities from 100 to 300 m/s and subjected to different accelerograms. The foundation behaviour is obtained through a continuum model including kinematic and inertial interaction. The relevance of soil-structure interaction and main trends of the seismic response of OWTs are inferred from the presented results. Although the seismic maximum bending moments increase with the size of the OWT system, their relevance with respect to the ones produced by design loads decreases as the turbine gets bigger. The same effect is observed for the shear forces if the soil is soft enough. The inclusion of SSI effects almost duplicates the seismic response when compared to the rigid base scenario.
format	article
author	Cristina Medina Guillermo M. Álamo Román Quevedo-Reina
author_facet	Cristina Medina Guillermo M. Álamo Román Quevedo-Reina
author_sort	Cristina Medina
title	Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
title_short	Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
title_full	Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
title_fullStr	Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
title_full_unstemmed	Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction
title_sort	evolution of the seismic response of monopile-supported offshore wind turbines of increasing size from 5 to 15 mw including dynamic soil-structure interaction
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e2b044acaf60475e86a2578ca3399309
work_keys_str_mv	AT cristinamedina evolutionoftheseismicresponseofmonopilesupportedoffshorewindturbinesofincreasingsizefrom5to15mwincludingdynamicsoilstructureinteraction AT guillermomalamo evolutionoftheseismicresponseofmonopilesupportedoffshorewindturbinesofincreasingsizefrom5to15mwincludingdynamicsoilstructureinteraction AT romanquevedoreina evolutionoftheseismicresponseofmonopilesupportedoffshorewindturbinesofincreasingsizefrom5to15mwincludingdynamicsoilstructureinteraction
_version_	1718411652007723008

Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction

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