Dynamics of a linear beam with an attached local nonlinear energy sink

Georgiades, F; Vakakis, AF

dc.contributor.author	Georgiades, F	en
dc.contributor.author	Vakakis, AF	en
dc.date.accessioned	2014-03-01T01:26:10Z
dc.date.available	2014-03-01T01:26:10Z
dc.date.issued	2007	en
dc.identifier.issn	1007-5704	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17953
dc.subject	Nonlinear targeted energy transfer	en
dc.subject.classification	Literature, British Isles	en
dc.subject.classification	Mathematics, Applied	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.classification	Physics, Mathematical	en
dc.subject.other	Flexible structures	en
dc.subject.other	Shock testing	en
dc.subject.other	Structural design	en
dc.subject.other	Nonlinear targeted energy transfer	en
dc.subject.other	Shock energy	en
dc.subject.other	Beams and girders	en
dc.subject.other	Beams and girders	en
dc.subject.other	Flexible structures	en
dc.subject.other	Shock testing	en
dc.subject.other	Structural design	en
dc.title	Dynamics of a linear beam with an attached local nonlinear energy sink	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cnsns.2005.07.003	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.cnsns.2005.07.003	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	We provide numerical evidence of passive and broadband targeted energy transfer from a linear flexible beam under shock excitation to a local essentially nonlinear lightweight attachment that acts, in essence, as nonlinear energy sink-NES. It is shown that the NES absorbs shock energy in a one-way, irreversible fashion and dissipates this energy locally, without 'spreading' it back to the linear beam. Moreover, we show numerically that an appropriately designed and placed NES can passively absorb and locally dissipate a major portion of the shock energy of the beam, up to an optimal value of 87%. The implementation of the NES concept to the shock isolation of practical engineering structures and to other applications is discussed. (C) 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Communications in Nonlinear Science and Numerical Simulation	en
dc.identifier.doi	10.1016/j.cnsns.2005.07.003	en
dc.identifier.isi	ISI:000208278200004	en
dc.identifier.volume	12	en
dc.identifier.issue	5	en
dc.identifier.spage	643	en
dc.identifier.epage	651	en