Output-only identification of rigid body motions of floating structures: a case study

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dc.contributor.authorRuzzo, C.
dc.contributor.authorFailla, G.
dc.contributor.authorCollu, Maurizio
dc.contributor.authorNava, V.
dc.contributor.authorFiamma, V.
dc.contributor.authorArena, Felice
dc.date.accessioned2018-02-23T14:25:10Z
dc.date.available2018-02-23T14:25:10Z
dc.date.issued2017-09-12
dc.description.abstractIn order to identify rigid body motions of floating offshore structures, output-only techniques are very useful for developing low-cost intermediate-scale experimental activities directly into the sea, instead of wave tanks. A crucial parameter, however, is the length of the response records used as input for the identification process, since short records may result in significant loss of accuracy, while long ones may be incompatible with the assumption of stationarity of the sea state. This work presents a sensitivity study conducted on a numerical model of a spar structure, identified by means of Enhanced Frequency Domain Decomposition method. An overview on the efficiency of the method is given for various lengths of response record, along with practical indications on the minimum values acceptable.en_UK
dc.identifier.citationC. Ruzzo, G. Failla, M. Collu et al. Output-only identification of rigid body motions of floating structures: a case study. Procedia Engineering, Volume 199, 2017, Pages 930-935en_UK
dc.identifier.issn1877-7058
dc.identifier.issnhttps://doi.org/10.1016/j.proeng.2017.09.243
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13030
dc.identifier.urihttps://doi.org/10.1016/j.proeng.2017.09.243
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectOperational Modal Analysisen_UK
dc.subjectOutput-only dynamic identificationen_UK
dc.subjectEnhanced Frequency Domain Decomposition methoden_UK
dc.subjectFloating spar structuresen_UK
dc.titleOutput-only identification of rigid body motions of floating structures: a case studyen_UK
dc.typeArticleen_UK

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