A model for quick load analysis for monopile-type offshore wind turbine substructures

A model for quick load analysis for monopile-type offshore wind turbine substructures

A model for quick load analysis, QuLA, of an offshore wind turbine substructure is presented. The aerodynamic rotor loads and damping are pre-computed for a land-based configuration. The dynamic structural response is represented by the first global fore-aft mode only and is computed in the freq...

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Main Authors: S. Schløer, L. Garcia Castillo, M. Fejerskov, E. Stroescu, H. Bredmose
Format: Article
Language:English
Published: Copernicus Publications 2018-03-01
Series:Wind Energy Science
Online Access:https://www.wind-energ-sci.net/3/57/2018/wes-3-57-2018.pdf
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spelling doaj-2b317b2bddd142d8830124cbd69df8f92020-11-25T00:24:11ZengCopernicus PublicationsWind Energy Science2366-74432366-74512018-03-013577310.5194/wes-3-57-2018A model for quick load analysis for monopile-type offshore wind turbine substructuresS. Schløer0L. Garcia Castillo1M. Fejerskov2E. Stroescu3H. Bredmose4DTU Wind Energy, Nils Koppels Allé, Building. 403, 2800 Kgs. Lyngby, DenmarkUniversal Foundation, Langerak 17, 9220 Aalborg Øst, DenmarkUniversal Foundation, Langerak 17, 9220 Aalborg Øst, DenmarkUniversal Foundation, Langerak 17, 9220 Aalborg Øst, DenmarkDTU Wind Energy, Nils Koppels Allé, Building. 403, 2800 Kgs. Lyngby, DenmarkA model for quick load analysis, QuLA, of an offshore wind turbine substructure is presented. The aerodynamic rotor loads and damping are pre-computed for a land-based configuration. The dynamic structural response is represented by the first global fore-aft mode only and is computed in the frequency domain with phases using the equation of motion. The model is compared to the state-of-the-art aeroelastic code Flex5. Both lifetime fatigue and extreme loads are considered in the comparison. In general there is good agreement between the two models. Some deviations for the sectional forces are explained in terms of the model simplifications. The differences in the sectional moments are found to be within 10 % for the fatigue load case and 10 % for the extreme load condition.https://www.wind-energ-sci.net/3/57/2018/wes-3-57-2018.pdf
collection DOAJ
language English
format Article
sources DOAJ
author S. Schløer
L. Garcia Castillo
M. Fejerskov
E. Stroescu
H. Bredmose
spellingShingle S. Schløer
L. Garcia Castillo
M. Fejerskov
E. Stroescu
H. Bredmose
A model for quick load analysis for monopile-type offshore wind turbine substructures
Wind Energy Science
author_facet S. Schløer
L. Garcia Castillo
M. Fejerskov
E. Stroescu
H. Bredmose
author_sort S. Schløer
title A model for quick load analysis for monopile-type offshore wind turbine substructures
title_short A model for quick load analysis for monopile-type offshore wind turbine substructures
title_full A model for quick load analysis for monopile-type offshore wind turbine substructures
title_fullStr A model for quick load analysis for monopile-type offshore wind turbine substructures
title_full_unstemmed A model for quick load analysis for monopile-type offshore wind turbine substructures
title_sort model for quick load analysis for monopile-type offshore wind turbine substructures
publisher Copernicus Publications
series Wind Energy Science
issn 2366-7443
2366-7451
publishDate 2018-03-01
description A model for quick load analysis, QuLA, of an offshore wind turbine substructure is presented. The aerodynamic rotor loads and damping are pre-computed for a land-based configuration. The dynamic structural response is represented by the first global fore-aft mode only and is computed in the frequency domain with phases using the equation of motion. The model is compared to the state-of-the-art aeroelastic code Flex5. Both lifetime fatigue and extreme loads are considered in the comparison. In general there is good agreement between the two models. Some deviations for the sectional forces are explained in terms of the model simplifications. The differences in the sectional moments are found to be within 10 % for the fatigue load case and 10 % for the extreme load condition.
url https://www.wind-energ-sci.net/3/57/2018/wes-3-57-2018.pdf
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