Passive vibration control through nonlinear energy pumping

Vakakis, AF; McFarland, DM; Bergman, L; Manevitch, L; Gendelman, O

dc.contributor.author	Vakakis, AF	en
dc.contributor.author	McFarland, DM	en
dc.contributor.author	Bergman, L	en
dc.contributor.author	Manevitch, L	en
dc.contributor.author	Gendelman, O	en
dc.date.accessioned	2014-03-01T02:49:34Z
dc.date.available	2014-03-01T02:49:34Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34611
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-1842683956&partnerID=40&md5=0275e6bd4c4782fae9e769add69d02e9	en
dc.subject.other	Nonlinear energy sink (NES)	en
dc.subject.other	Shock isolation	en
dc.subject.other	Damping	en
dc.subject.other	Degrees of freedom (mechanics)	en
dc.subject.other	Eigenvalues and eigenfunctions	en
dc.subject.other	Energy dissipation	en
dc.subject.other	Equations of motion	en
dc.subject.other	Frequencies	en
dc.subject.other	Oscillators (mechanical)	en
dc.subject.other	Resonance	en
dc.subject.other	Vibration control	en
dc.title	Passive vibration control through nonlinear energy pumping	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	We examine vibration control through passive energy pumping in a system of damped coupled oscillators. This is a one-way, passive and irreversible energy flow from a linear main system to a nonlinear attachment that acts, in essence, as a nonlinear energy sink (NES). Energy pumping is caused by 1:1 resonance captures on resonant manifolds of the damped systems. We show that the NES is capable of absorbing significant portions of the energies generated by transient, broadband external excitations. We present numerical simulations of single- and multi-mode energy pumping, that involve isolated resonance captures or resonance capture cascades, respectively. In addition, we discuss methodologies for enhancing the nonlinear energy pumping phenomenon by properly selecting the system parameters. The described technique of passively localizing and locally eliminating externally induced energy provides a new paradigm for vibration and shock isolation of mechanical oscillators.	en
heal.journalName	Proceedings of the ASME Design Engineering Technical Conference	en
dc.identifier.volume	5 C	en
dc.identifier.spage	1883	en
dc.identifier.epage	1888	en