Asymmetric surging of ships in following seas and its repercussions for safety

Spyrou, KJ

dc.contributor.author	Spyrou, KJ	en
dc.date.accessioned	2014-03-01T02:43:57Z
dc.date.available	2014-03-01T02:43:57Z
dc.date.issued	2006	en
dc.identifier.issn	0924-090X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31571
dc.subject	Asymmetric surging	en
dc.subject	Broaching	en
dc.subject	Nonlinear dynamics	en
dc.subject	Ship	en
dc.subject	Stability	en
dc.subject	Surf-riding	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Broaching	en
dc.subject.other	Coastal zones	en
dc.subject.other	Oscillations	en
dc.subject.other	Predictive control systems	en
dc.subject.other	Stability	en
dc.subject.other	Time domain analysis	en
dc.subject.other	Asymmetric surging	en
dc.subject.other	Large-amplitude longitudinal oscillations	en
dc.subject.other	Surf-riding	en
dc.subject.other	Wave crests	en
dc.subject.other	Ships	en
dc.title	Asymmetric surging of ships in following seas and its repercussions for safety	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1007/s11071-006-0758-6	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11071-006-0758-6	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A comprehensive investigation of an asymmetric longitudinal motion of ships displayed in long and steep following waves is presented. The focus is on the strongly nonlinear response, on the verge of the so called surf-riding condition, where a ship could be performing large-amplitude longitudinal oscillations around a mean forward speed. Expressions, in closed form, describing transient surge motion on the phase-plane are derived. For steady-state in particular, is shown that it is possible to determine an explicit analytical solution in the time-domain. Simple prediction formulae for the higher limit of asymmetric surging (threshold of global surf-riding) are derived on the basis of two alternative methods. Also, we investigate the effect of asymmetric surging on a ship's tendency for capsize in the neighborhood of wave crests where restoring capability is often reduced. The paper includes, as an Appendix, a review of types of ship instability and a summary of the historical roots of the field. © Springer 2006.	en
heal.publisher	SPRINGER	en
heal.journalName	Nonlinear Dynamics	en
dc.identifier.doi	10.1007/s11071-006-0758-6	en
dc.identifier.isi	ISI:000235318500012	en
dc.identifier.volume	43	en
dc.identifier.issue	1-2	en
dc.identifier.spage	149	en
dc.identifier.epage	172	en