Nonlinear identification and input-output representation of the modal dynamics of marine slender structures

Xiros, NI; Chatjigeorgiou, IK

dc.contributor.author	Xiros, NI	en
dc.contributor.author	Chatjigeorgiou, IK	en
dc.date.accessioned	2014-03-01T01:26:44Z
dc.date.available	2014-03-01T01:26:44Z
dc.date.issued	2007	en
dc.identifier.issn	0892-7219	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18206
dc.subject	Nonlinear Identification	en
dc.subject	Input Output	en
dc.subject.classification	Engineering, Ocean	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Dynamics	en
dc.subject.other	Galerkin methods	en
dc.subject.other	Mathematical models	en
dc.subject.other	Modal analysis	en
dc.subject.other	Numerical methods	en
dc.subject.other	Spectrum analysis	en
dc.subject.other	Axial motions	en
dc.subject.other	Marine slender structures	en
dc.subject.other	Modal dynamics	en
dc.subject.other	Transverse motions	en
dc.subject.other	Ocean structures	en
dc.subject.other	Dynamics	en
dc.subject.other	Galerkin methods	en
dc.subject.other	Mathematical models	en
dc.subject.other	Modal analysis	en
dc.subject.other	Numerical methods	en
dc.subject.other	Ocean structures	en
dc.subject.other	Spectrum analysis	en
dc.subject.other	dynamic response	en
dc.subject.other	fixed structure	en
dc.subject.other	Galerkin method	en
dc.subject.other	modeling	en
dc.subject.other	spectral analysis	en
dc.subject.other	stability analysis	en
dc.subject.other	structural response	en
dc.title	Nonlinear identification and input-output representation of the modal dynamics of marine slender structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.2746391	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.2746391	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The present work treats the problem of the dynamic behavior of a vertical slender structure subject to combined axial and transverse motions. The solution method is based on a Galerkin-type semi-analytical formulation. The responses to sinusoidal monochromatic excitation are assessed with respect to the significance of each mode and their spectral content. As a result, a reduced, yet nonlinear, lumped model for each one of the significant modes of the structure is generated. The parameters of these fixed-structure models can be determined systematically by two methods relying on the spectral analysis of the numerically calculated modal responses of the structure. The resulting models constitute an explicit input-output relationship between the imposed motions and the modes of the structure, useful for stability analysis, design and control. Copyright © 2007 by ASME.	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	Journal of Offshore Mechanics and Arctic Engineering	en
dc.identifier.doi	10.1115/1.2746391	en
dc.identifier.isi	ISI:000248771900005	en
dc.identifier.volume	129	en
dc.identifier.issue	3	en
dc.identifier.spage	188	en
dc.identifier.epage	200	en