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dc.contributor.authorZwick, Daniel
dc.contributor.authorSchafhirt, Sebastian
dc.contributor.authorBrommundt, Matthias
dc.contributor.authorMuskulus, Michael
dc.contributor.authorNarasimhan, S
dc.contributor.authorMechineau, Jonathan
dc.contributor.authorHaugsøen, Per
dc.identifier.citationJournal of Physics, Conference Series. 2014, 555 (1), .nb_NO
dc.description.abstractAccurate load simulations are necessary in order to design cost-efficient support structures for offshore wind turbines. Due to software limitations and confidentiality issues, support structures are often designed with sequential analyses, where simplified wind turbine and support structure models replace more detailed models. The differences with an integrated analysis are studied here for a commercial OWEC Quattropod. Integrated analysis seems to generally predict less damage than sequential analysis, decreasing by 30-70 percent in two power production cases with small waves. Additionally it was found that using a different realization of the wave forces for the retrieval run in sequential analysis leads to an increase of predicted damage, which can be explained as the effect of applying two independent wave force series at the same time. The midsection of the detailed support structure model used shell elements. Additional analyses for a model with an equivalent beam model of the midsection showed only small differences, mostly overpredicting damage by a few percent. Such models can therefore be used for relatively accurate analysis, if carefully calibrated.nb_NO
dc.publisherIOP Publishingnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleComparison of different approaches to load calculation for the OWEC Quattropod jacket support structurenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalJournal of Physics, Conference Seriesnb_NO
dc.relation.projectNorges forskningsråd: 193823nb_NO
dc.description.localcodeContent from this work may be used under the terms of the Creative 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 bygg- og miljøteknikk

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