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dc.contributor.authorSørum, Stian Høegh
dc.contributor.authorKrokstad, Jørgen R
dc.contributor.authorAmdahl, Jørgen
dc.identifier.citationJournal of Physics: Conference Series. 2019, 1356 .nb_NO
dc.description.abstractThe current trend for offshore wind energy is that larger turbines are placed on monopile foundations at increasing water depth. This requires larger foundations, increasing the importance of hydrodynamic loading. It is well established that wave loads perpendicular to the wind direction are important for the fatigue damage in monopile foundations. However, this is normally only taken into account considering wind-wave misalignment. In this paper, the effect of assuming short-crested waves in design calculations is considered. The lifetime fatigue damage may increase significantly for hydrodynamically sensitive support structures when modelling the waves as short-crested rather than long-crested. For the turbines in this paper, the fatigue damage increased with up to 80 %. At the same time, the changes in fatigue damage were small for support structures that are less hydrodynamically sensitive. The work performed in this paper shows that the typical design assumption of long-crested waves may be both conservative and non-conservative. This fact is important to be aware of when designing support structures for offshore wind turbines.nb_NO
dc.description.abstractWind-wave directional effects on fatigue of bottom-fixed offshore wind turbinenb_NO
dc.publisherIOP Publishingnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleWind-wave directional effects on fatigue of bottom-fixed offshore wind turbinenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalJournal of Physics: Conference Seriesnb_NO
dc.relation.projectNorges forskningsråd: 223254nb_NO
dc.description.localcodeContent from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltdnb_NO
cristin.unitnameInstitutt for marin teknikk

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Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal