Articles | Volume 7, issue 5
https://doi.org/10.5194/wes-7-1919-2022
https://doi.org/10.5194/wes-7-1919-2022
Research article
 | 
26 Sep 2022
Research article |  | 26 Sep 2022

Probabilistic temporal extrapolation of fatigue damage of offshore wind turbine substructures based on strain measurements

Clemens Hübler and Raimund Rolfes

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Thematic area: Materials and operation | Topic: Fatigue
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Revised manuscript accepted for WES
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Cited articles

Bartsch, C.: FACT-SHEET alpha ventus, press release of alpha ventus, https://www.alpha-ventus.de/fileadmin/Dateien/publikationen/av_Factsheet_de_2020.pdf, last access: 16 March 2021. a
BMWK – Bundesministeriums für Wirtschaft und Klimaschutz: Entwurf eines Zweiten Gesetzes zur Änderung des Windenergie-auf-See-Gesetzes und anderer Vorschriften, draft bill of the BMWK, https://www.bmwk.de/Redaktion/DE/Downloads/E/entwurf-eines-zweiten-gesetzes-zur-aenderung-des-windenergie (last access: 19 September 2022), 4 March 2022 (in German). a
Bouty, C., Schafhirt, S., Ziegler, L., and Muskulus, M.: Lifetime extension for large offshore wind farms: Is it enough to reassess fatigue for selected design positions?, Energy Proced., 137, 523–530, 2017. a
Cosack, N. and Kühn, M.: Überwachung von Belastungen an Windenergieanlagen durch Analyse von Standardsignalen, AKIDA Tagungsband, 6, 277–283, 2006 (in German). a
Dimitrov, N. and Natarajan, A.: From SCADA to lifetime assessment and performance optimization: how to use models and machine learning to extract useful insights from limited data, J. Phys.-Conf. Ser., 1222, 012032, https://doi.org/10.1088/1742-6596/1222/1/012032, 2019. a, b
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Short summary
Offshore wind turbines are beginning to reach their design lifetimes. Hence, lifetime extensions are becoming relevant. To make well-founded decisions on possible lifetime extensions, fatigue damage predictions are required. Measurement-based assessments instead of simulation-based analyses have rarely been conducted so far, since data are limited. Therefore, this work focuses on the temporal extrapolation of measurement data. It is shown that fatigue damage can be extrapolated accurately.
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