Approach to include load sequence effects in the design of an offshore wind turbine substructure

R.C. Dragt, D. Allaix, J. Maljaars, J.T. Tuitman, Y. Salman, M.E. Otheguy

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

2 Citaten (Scopus)
1 Downloads (Pure)

Samenvatting

Fatigue is one of the main design drivers for offshore wind substructures. Using Fracture Mechanics methods, load sequence effects such as crack growth retardation due to large load peaks can be included in the fatigue damage estimation. Due to the sequence dependency, a method is required that represents the sequences of loads in the design or maintenance procedures. This paper presents a methodology to deal with this challenge. First, a framework is presented for coupling between the design load cases and the Fracture Mechanics methods, resulting into the requirements for loads and load sequences. Second, a 2-stage Markov Chain Monte Carlo model is presented which is able to create realistic loading sequences based on measurement data. The method is elaborated for fluctuating wind loads.

Originele taal-2Engels
TitelProceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017
Pagina's312-319
Aantal pagina's8
ISBN van elektronische versie9781880653975
StatusGepubliceerd - 2017
Evenement27th International Ocean and Polar Engineering Conference (ISOPE-2017), June 25-30, 2017, San Francisco, USA - San Francisco, Verenigde Staten van Amerika
Duur: 25 jun 201730 jun 2017

Congres

Congres27th International Ocean and Polar Engineering Conference (ISOPE-2017), June 25-30, 2017, San Francisco, USA
Verkorte titelISOPE 2017
LandVerenigde Staten van Amerika
StadSan Francisco
Periode25/06/1730/06/17

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  • Citeer dit

    Dragt, R. C., Allaix, D., Maljaars, J., Tuitman, J. T., Salman, Y., & Otheguy, M. E. (2017). Approach to include load sequence effects in the design of an offshore wind turbine substructure. In Proceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017 (blz. 312-319)