Fatigue Reliability of Offshore Wind Turbine Systems

Sergio Marquez-Dominguez, John Dalsgaard Sørensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review


Optimization of the design of offshore wind turbine substructures with respect to fatigue loads is an important issue in offshore wind energy. A stochastic model is developed for assessing the fatigue failure reliability. This model can be used for direct probabilistic design and for calibration of appropriate partial safety factors / fatigue design factors (FDF) for steel substructures of offshore wind turbines (OWTs). The fatigue life is modeled by the SN approach. Design and limit state equations are established based on the accumulated fatigue damage. The acceptable reliability level for optimal fatigue design of OWTs is discussed and results for reliability assessment of typical fatigue critical design of offshore steel support structures are presented.
Original languageEnglish
Title of host publicationReliability and Optimization of Structural Systems : Proceedings of the 16th working conference on the international federation of information processing (IFIP) working group 7.5 on reliability and optimization of structural systems
EditorsA. Der Kiureghian, A. Hajian
Number of pages8
PublisherAmerican University of Armenia Press, Yrevan, Armenia
Publication date2012
ISBN (Print)978-0-9657429-0-0
Publication statusPublished - 2012
EventReliability and Optimization of Structural System: IFIP WG 7.5 working group conference - Yerevan, Armenia
Duration: 24 Jun 201227 Jun 2012
Conference number: 16


ConferenceReliability and Optimization of Structural System


  • Fatigue
  • Reliability
  • Offshore Wind Turbine

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