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dc.contributor.authorHorn, Jan-Tore H.
dc.contributor.authorJensen, Jørgen Juncher
dc.date.accessioned2017-02-01T08:20:04Z
dc.date.available2017-02-01T08:20:04Z
dc.date.created2016-12-13T09:08:22Z
dc.date.issued2016
dc.identifier.isbn978-87-7475-473-2
dc.identifier.urihttp://hdl.handle.net/11250/2429096
dc.description.abstractUncertainties related to fatigue damage estimation of non-linear systems are highly dependent on the tail behaviour and extreme values of the stress range distribution. By using a combination of the First Order Reliability Method (FORM) and Monte Carlo simulations (MCS), the accuracy of the fatigue estimations may be improved for the same computational efforts. The method is applied to a bottom-fixed, monopile-supported large offshore wind turbine, which is a non-linear and dynamically sensitive system. Different curve fitting techniques to the fatigue damage distribution have been used depending on the sea-state dependent response characteristics, and the effect of a bi-linear S-N curve is discussed. Finally, analyses are performed on several environmental conditions to investigate the long-term applicability of this multistep method. Wave loads are calculated using state-of-the-art theory, while wind loads are applied with a simplified model based on rotor thrust coefficients.nb_NO
dc.language.isoengnb_NO
dc.publisherTechnical University of Denmark (DTU)nb_NO
dc.relation.ispartofProceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures (PRADS' 2016)
dc.relation.urihttp://orbit.dtu.dk/files/125366207/5_34_Reducing_Uncertainty_of_Monte_Carlo_Estimated_Fatigue_Damage_in_Offshore_Wind_Turbines_Using_FORM.pdf
dc.titleReducing uncertainty of Monte Carlo estimated fatigue damage in offshore wind turbines using FORMnb_NO
dc.typeChapternb_NO
dc.typeConference objectnb_NO
dc.typePeer reviewednb_NO
dc.source.journal13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS'2016)nb_NO
dc.identifier.cristin1411834
dc.relation.projectNorges forskningsråd: 223254nb_NO
dc.description.localcode© DTU. This is the authors' accepted and refereed manuscript to the article.nb_NO
cristin.unitcode194,64,20,0
cristin.unitnameInstitutt for marin teknikk
cristin.ispublishedtrue
cristin.fulltextpostprint


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