Hydroelastic responses of very large floating structures lying over variable bathymetry regions

Belibassakis, KA; Athanassoulis, GA

dc.contributor.author	Belibassakis, KA	en
dc.contributor.author	Athanassoulis, GA	en
dc.date.accessioned	2014-03-01T02:49:46Z
dc.date.available	2014-03-01T02:49:46Z
dc.date.issued	2004	en
dc.identifier.issn	10986189	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34736
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-23844493586&partnerID=40&md5=431addee846d6fc73edfe090b7e0d52e	en
dc.subject	Coupled-modes	en
dc.subject	Hydroelastic analysis	en
dc.subject	Variable bathymetry	en
dc.subject	Very Large Floating Structures	en
dc.subject.other	Bathymetry	en
dc.subject.other	Dynamic response	en
dc.subject.other	Eigenvalues and eigenfunctions	en
dc.subject.other	Floating breakwaters	en
dc.subject.other	Hydroelasticity	en
dc.subject.other	Numerical methods	en
dc.subject.other	Pontoons	en
dc.subject.other	Wave equations	en
dc.subject.other	Wave propagation	en
dc.subject.other	Coupled-modes	en
dc.subject.other	Hydroelastic analysis	en
dc.subject.other	Variable bathymetry	en
dc.subject.other	Very large floating structures	en
dc.subject.other	Offshore structures	en
dc.title	Hydroelastic responses of very large floating structures lying over variable bathymetry regions	en
heal.type	conferenceItem	en
heal.publicationDate	2004	en
heal.abstract	In the present work, a coupled-mode technique is developed and applied to the hydroelastic analysis of very large floating platforms of shallow draft lying over variable bathymetry regions. Under the assumption of small-amplitude incident waves and small deflections, the linearised water-wave equations have been used, and the shallow-draft platform has been modelled as a thin elastic plate. In order to consistently treat the wave field beneath the elastic floating structure, the present approach is based on appropriate extensions of the coupled-mode model developed by Athanassoulis & Belibassakis (1999) for waves propagating in variable bathymetry regions, which is free of any mild-slope assumption concerning the bottom boundary. Numerical results concerning floating structures lying over flat and sloping beds are comparatively presented, and the effects of the bottom slope on the hydroelastic responses of the system are examined and discussed. Some of the important features of the present approach is that it can be further extended to treat the 3D problem and to include the effects of weak nonlinearity. Copyright © 2004 by The International Society of Offshore and Polar Engineers.	en
heal.journalName	Proceedings of the International Offshore and Polar Engineering Conference	en
dc.identifier.spage	584	en
dc.identifier.epage	591	en