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dc.contributor.authorTosdevin, Tom
dc.contributor.authorJin, Siya
dc.contributor.authorSimmonds, Dave
dc.contributor.authorHann, Martyn
dc.contributor.authorGreaves, Deborah
dc.contributor.otherFaculty of Science & Engineeringen_US

Physical experiments investigating the extreme responses of a semi-submersible floating offshore wind turbine were conducted to allow a comparison of design wave methods. A 1:70 scale model of the IEA 15MW reference turbine and VolturnUS-S platform was studied focusing on the hydrodynamics under parked turbine conditions. A comparison of characteristic load predictions was made between design standard recommendations by the IEC and DNV covering different design wave types and post processing methods. Constrained waves are permitted for predicting characteristic loads for fixed offshore turbines but the extent to which they are suitable for floating devices is questionable. A constrained wave method for characteristic load prediction is applied and it is concluded that in general characteristic responses related to pitch may be estimated well with single response conditioned focused waves but for response types where the low frequency surge is important, e.g. mooring loads, constrained focused waves need to be applied.

dc.publisherUniversity of Plymouthen
dc.subjectFloating wind, semi-sub, extreme response, reliability, focused wave, short design waveen_US
dc.titleOn the use of constrained focused waves for characteristic load predictionen_US
rioxxterms.funderEngineering and Physical Sciences Research Councilen_US
rioxxterms.identifier.projectSupergen ORE hub 2018en_US

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