Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading
Fixed offshore wind turbines continue to be developed for high latitude areas where not only wind and wave loads need to be considered but also moving sea ice. Current rules and regulations for the design of fixed offshore structures in ice-covered waters do not adequately consider the effects of ic...
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Online Access: | http://resolver.tudelft.nl/uuid:d7db9a64-64c4-4476-8776-608720c9e0fb https://doi.org/10.3390/en15020559 |
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fttudelft:oai:tudelft.nl:uuid:d7db9a64-64c4-4476-8776-608720c9e0fb 2024-02-11T10:01:26+01:00 Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading Braun, Moritz (author) Dörner, Alfons (author) ter Veer, Kane F. (author) Willems, Tom (author) Seidel, Marc (author) Hendrikse, H. (author) Høyland, Knut V. (author) Fischer, Claas (author) Ehlers, Sören (author) 2022 http://resolver.tudelft.nl/uuid:d7db9a64-64c4-4476-8776-608720c9e0fb https://doi.org/10.3390/en15020559 en eng http://www.scopus.com/inward/record.url?scp=85122975584&partnerID=8YFLogxK Energies--1996-1073--de04721e-c2a4-4ae5-baff-738a272851a2 http://resolver.tudelft.nl/uuid:d7db9a64-64c4-4476-8776-608720c9e0fb https://doi.org/10.3390/en15020559 © 2022 Moritz Braun, Alfons Dörner, Kane F. ter Veer, Tom Willems, Marc Seidel, H. Hendrikse, Knut V. Høyland, Claas Fischer, Sören Ehlers Arctic conditions Damage model Ice-induced vibrations Low-temperature fatigue Markov chain method Offshore wind turbine support structures Omission level Rainflow counting Stress-time sequence journal article 2022 fttudelft https://doi.org/10.3390/en15020559 2024-01-24T23:32:38Z Fixed offshore wind turbines continue to be developed for high latitude areas where not only wind and wave loads need to be considered but also moving sea ice. Current rules and regulations for the design of fixed offshore structures in ice-covered waters do not adequately consider the effects of ice loading and its stochastic nature on the fatigue life of the structure. Ice crushing on such structures results in ice-induced vibrations, which can be represented by loading the structure using a variable-amplitude loading (VAL) sequence. Typical offshore load spectra are developed for wave and wind loading. Thus, a combined VAL spectrum is developed for wind, wave, and ice action. To this goal, numerical models are used to simulate the dynamic ice-, wind-, and wave-structure interaction. The stress time-history at an exemplarily selected critical point in an offshore wind energy monopile support structure is extracted from the model and translated into a VAL sequence, which can then be used as a loading sequence for the fatigue assessment or fatigue testing of welded joints of offshore wind turbine support structures. This study presents the approach to determine combined load spectra and standardized time series for wind, wave, and ice action. Offshore Engineering Article in Journal/Newspaper Arctic Sea ice ice covered waters Delft University of Technology: Institutional Repository Arctic Energies 15 2 559 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
Arctic conditions Damage model Ice-induced vibrations Low-temperature fatigue Markov chain method Offshore wind turbine support structures Omission level Rainflow counting Stress-time sequence |
spellingShingle |
Arctic conditions Damage model Ice-induced vibrations Low-temperature fatigue Markov chain method Offshore wind turbine support structures Omission level Rainflow counting Stress-time sequence Braun, Moritz (author) Dörner, Alfons (author) ter Veer, Kane F. (author) Willems, Tom (author) Seidel, Marc (author) Hendrikse, H. (author) Høyland, Knut V. (author) Fischer, Claas (author) Ehlers, Sören (author) Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
topic_facet |
Arctic conditions Damage model Ice-induced vibrations Low-temperature fatigue Markov chain method Offshore wind turbine support structures Omission level Rainflow counting Stress-time sequence |
description |
Fixed offshore wind turbines continue to be developed for high latitude areas where not only wind and wave loads need to be considered but also moving sea ice. Current rules and regulations for the design of fixed offshore structures in ice-covered waters do not adequately consider the effects of ice loading and its stochastic nature on the fatigue life of the structure. Ice crushing on such structures results in ice-induced vibrations, which can be represented by loading the structure using a variable-amplitude loading (VAL) sequence. Typical offshore load spectra are developed for wave and wind loading. Thus, a combined VAL spectrum is developed for wind, wave, and ice action. To this goal, numerical models are used to simulate the dynamic ice-, wind-, and wave-structure interaction. The stress time-history at an exemplarily selected critical point in an offshore wind energy monopile support structure is extracted from the model and translated into a VAL sequence, which can then be used as a loading sequence for the fatigue assessment or fatigue testing of welded joints of offshore wind turbine support structures. This study presents the approach to determine combined load spectra and standardized time series for wind, wave, and ice action. Offshore Engineering |
format |
Article in Journal/Newspaper |
author |
Braun, Moritz (author) Dörner, Alfons (author) ter Veer, Kane F. (author) Willems, Tom (author) Seidel, Marc (author) Hendrikse, H. (author) Høyland, Knut V. (author) Fischer, Claas (author) Ehlers, Sören (author) |
author_facet |
Braun, Moritz (author) Dörner, Alfons (author) ter Veer, Kane F. (author) Willems, Tom (author) Seidel, Marc (author) Hendrikse, H. (author) Høyland, Knut V. (author) Fischer, Claas (author) Ehlers, Sören (author) |
author_sort |
Braun, Moritz (author) |
title |
Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
title_short |
Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
title_full |
Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
title_fullStr |
Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
title_full_unstemmed |
Development of Combined Load Spectra for Offshore Structures Subjected to Wind, Wave, and Ice Loading |
title_sort |
development of combined load spectra for offshore structures subjected to wind, wave, and ice loading |
publishDate |
2022 |
url |
http://resolver.tudelft.nl/uuid:d7db9a64-64c4-4476-8776-608720c9e0fb https://doi.org/10.3390/en15020559 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice ice covered waters |
genre_facet |
Arctic Sea ice ice covered waters |
op_relation |
http://www.scopus.com/inward/record.url?scp=85122975584&partnerID=8YFLogxK Energies--1996-1073--de04721e-c2a4-4ae5-baff-738a272851a2 http://resolver.tudelft.nl/uuid:d7db9a64-64c4-4476-8776-608720c9e0fb https://doi.org/10.3390/en15020559 |
op_rights |
© 2022 Moritz Braun, Alfons Dörner, Kane F. ter Veer, Tom Willems, Marc Seidel, H. Hendrikse, Knut V. Høyland, Claas Fischer, Sören Ehlers |
op_doi |
https://doi.org/10.3390/en15020559 |
container_title |
Energies |
container_volume |
15 |
container_issue |
2 |
container_start_page |
559 |
_version_ |
1790597236015497216 |