Analytical expressions of capsize boundary for a ship with roll bias in beam waves

Spyrou, KJ; Cotton, B; Gurd, B

dc.contributor.author	Spyrou, KJ	en
dc.contributor.author	Cotton, B	en
dc.contributor.author	Gurd, B	en
dc.date.accessioned	2014-03-01T01:17:33Z
dc.date.available	2014-03-01T01:17:33Z
dc.date.issued	2002	en
dc.identifier.issn	0022-4502	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14552
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0036746095&partnerID=40&md5=090ea1dbceb201eb6ea5dc2efe9d9cc4	en
dc.subject.classification	Engineering, Marine	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Accident prevention	en
dc.subject.other	Damping	en
dc.subject.other	Dynamics	en
dc.subject.other	Hamiltonians	en
dc.subject.other	Integral equations	en
dc.subject.other	Integration	en
dc.subject.other	Mathematical models	en
dc.subject.other	Ships	en
dc.subject.other	Beam waves	en
dc.subject.other	Capsizability	en
dc.subject.other	Capsize boundary	en
dc.subject.other	Melnikovs method	en
dc.subject.other	Ship capsize assessment	en
dc.subject.other	Naval architecture	en
dc.title	Analytical expressions of capsize boundary for a ship with roll bias in beam waves	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	We have considered Melnikov's method for assessing ship safety against capsize in beam waves when there is some steady heel due, for example, to beam wind loading. For a generic restoring lever parameterized with respect to the degree of lever asymmetry (""bias"") we have derived closed-form relationships characterizing capsizability and linking the critical wave-slope, the amount of bias, and the damping. Qualitative differences in the safe basin characteristics are identified, which depend on whether the bias is small or large. A critical look into the accuracy of the Melnikov formulas is also presented for nearly symmetric and for strongly asymmetric rolling, based on comparisons with numerical predictions.	en
heal.publisher	SOC NAVAL ARCH MARINE ENG	en
heal.journalName	Journal of Ship Research	en
dc.identifier.isi	ISI:000177925100002	en
dc.identifier.volume	46	en
dc.identifier.issue	3	en
dc.identifier.spage	167	en
dc.identifier.epage	174	en