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dc.contributor.authorGuachamin Acero, Wilson Ivan
dc.contributor.authorGao, Zhen
dc.contributor.authorMoan, Torgeir
dc.date.accessioned2017-10-31T08:38:33Z
dc.date.available2017-10-31T08:38:33Z
dc.date.created2017-10-23T11:29:07Z
dc.date.issued2017
dc.identifier.citationJournal of Offshore Mechanics and Arctic Engineering-Transactions of The Asme. 2017, 139 (6), .nb_NO
dc.identifier.issn0892-7219
dc.identifier.urihttp://hdl.handle.net/11250/2463059
dc.description.abstractIn this paper, a methodology suitable for assessing the allowable sea states for installation of a transition piece (TP) onto a monopile (MP) foundation with focus on the docking operation is proposed. The TP installation procedure together with numerical analyses is used to identify critical and restricting events and their corresponding limiting parameters. For critical installation phases, existing numerical solutions based on frequency and time domain (TD) analyses of stationary processes are combined to quickly assess characteristic values of dynamic responses of limiting parameters for any given sea state. These results are compared against (nonlinear and nonstationary) time domain simulations of the actual docking operations. It is found that a critical event is the structural damage of the TP's bracket supports due to the potential large impact forces or velocities, and a restricting installation event (not critical) is the unsuccessful mating operation due to large horizontal motions of the TP bottom. By comparing characteristic values of dynamic responses with their allowable limits, the allowable sea states are established. Contact–impact problems are addressed in terms of assumed allowable impact velocities of the colliding objects. A possible automatic motion compensation system and human actions are not modeled. This methodology can also be used in connection with other mating operations such as float-over and topside installation.nb_NO
dc.language.isoengnb_NO
dc.publisherAmerican Society of Mechanical Engineers (ASME)nb_NO
dc.titleMethodology for assessment of the allowable sea states during installation of an offshore Wind turbine transition piece structure onto a monopile foundationnb_NO
dc.typeJournal articlenb_NO
dc.description.versionsubmittedVersionnb_NO
dc.source.pagenumber16nb_NO
dc.source.volume139nb_NO
dc.source.journalJournal of Offshore Mechanics and Arctic Engineering-Transactions of The Asmenb_NO
dc.source.issue6nb_NO
dc.identifier.doi10.1115/1.4037174
dc.identifier.cristin1506756
dc.relation.projectNorges forskningsråd: 223254nb_NO
dc.relation.projectNorges forskningsråd: 237929nb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2017 by ASMEnb_NO
cristin.unitcode194,64,20,0
cristin.unitnameInstitutt for marin teknikk
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode2


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