An experimental study of nonlinear behaviour in roll and capsize

Cotton, B; Spyrou, KJ

dc.contributor.author	Cotton, B	en
dc.contributor.author	Spyrou, KJ	en
dc.date.accessioned	2014-03-01T01:16:08Z
dc.date.available	2014-03-01T01:16:08Z
dc.date.issued	2001	en
dc.identifier.issn	0020868X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13935
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0035324262&partnerID=40&md5=dbf0276c297145734a20e60d7df284a6	en
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0035324262&partnerID=40&md5=dbf0276c297145734a20e60d7df284a6	en
dc.subject.other	Computational methods	en
dc.subject.other	Mathematical models	en
dc.subject.other	Motion control	en
dc.subject.other	Resonance	en
dc.subject.other	Ship models	en
dc.subject.other	Capsize tests	en
dc.subject.other	Steep waves	en
dc.subject.other	Shipbuilding	en
dc.title	An experimental study of nonlinear behaviour in roll and capsize	en
heal.type	journalArticle	en
heal.publicationDate	2001	en
heal.abstract	In this paper we present the results of a series of capsize tests based on a prismatic model ship. The aim of the experiments was to study the significance of some nonlinear phenomena predicted in theoretical studies of roll motion. Regions of bistability are observed near linear resonance. It is verified that, near resonance, the frequency-response curve is skewed towards lower frequencies due to the softening nature of the GZ curve. The experimentally derived capsize boundary is then compared with the theoretical one. Finally we present some evidence for the sensitivity of capsize to initial conditions and discuss the importance of applying this to a testing procedure.	en
heal.journalName	International Shipbuilding Progress	en
dc.identifier.volume	48	en
dc.identifier.issue	1	en
dc.identifier.spage	5	en
dc.identifier.epage	18	en