Classification Of Ice-Induced Vibration Regimes Of Offshore Wind Turbines

T.C. Hammer, C.C. Owen, M.A. van den Berg, H. Hendrikse

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Ice-induced vibrations of offshore wind turbines on monopile foundations were investigated experimentally at the Aalto Ice Tank. A real-time hybrid test setup was developed allowing to accurately simulate the motion of a wind turbine in interaction with ice, incorporating the multi-modal aspects of the interaction and the effect of simultaneous ice and wind loading. Different vibration patterns were observed where some could be described based on the common terminology of intermittent crushing or continuous brittle crushing. However, not all resulting vibrations could be described accordingly. A combination of several global bending modes interacting with the ice resulted in high global ice loads and structural response. Such response is likely typical for an offshore wind turbine, owing to the dynamic characteristics of the structure. The type of interaction observed during the tests would be most critical for design as the largest bending moments in critical cross-sections of the foundations occur for this regime. A classification of ice-induced vibrations is proposed which encompasses the experimental observations for offshore wind turbines on the basis of the periodicity in the structural response at the ice action point.
Original languageEnglish
Title of host publicationProceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering
Place of PublicationHamburg, Germany
PublisherThe American Society of Mechanical Engineers (ASME)
Number of pages8
DOIs
Publication statusPublished - 2022
EventASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022 - Congress Center Hamburg, Hamburg, Germany
Duration: 5 Jun 202210 Jun 2022
https://event.asme.org/OMAE-2022

Conference

ConferenceASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2022
Abbreviated titleOMAE 2022
Country/TerritoryGermany
CityHamburg
Period5/06/2210/06/22
Internet address

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • ice tank tests
  • ice-structure interaction
  • multi-modal interaction
  • dynamic ice loading

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