Irreversible passive energy transfer in the damped response of coupled oscillators with essential nonlinearity

Kerschen, G; Lee, YS; Vakakis, AF; McFarland, DM; Bergman, LA

dc.contributor.author	Kerschen, G	en
dc.contributor.author	Lee, YS	en
dc.contributor.author	Vakakis, AF	en
dc.contributor.author	McFarland, DM	en
dc.contributor.author	Bergman, LA	en
dc.date.accessioned	2014-03-01T02:50:07Z
dc.date.available	2014-03-01T02:50:07Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34910
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33144463728&partnerID=40&md5=79d0f9d0dadb68ca9dfe6f067c3f5dcc	en
dc.subject.other	Control nonlinearities	en
dc.subject.other	Damping	en
dc.subject.other	Dynamics	en
dc.subject.other	Numerical methods	en
dc.subject.other	Oscillators (electronic)	en
dc.subject.other	Seismology	en
dc.subject.other	Broadband energy	en
dc.subject.other	Linear oscillators	en
dc.subject.other	Nonlinear beat phenomena	en
dc.subject.other	Subharmonic resonance capture	en
dc.subject.other	Energy transfer	en
dc.title	Irreversible passive energy transfer in the damped response of coupled oscillators with essential nonlinearity	en
heal.type	conferenceItem	en
heal.publicationDate	2005	en
heal.abstract	We study, numerically and analytically the dynamics of passive energy transfer from a damped linear oscillator to an essentially nonlinear end attachment. This transfer is caused either by fundamental or subharmonic resonance capture, and in some cases is initiated by nonlinear beat phenomena. It is shown that, due to the essential nonlinearity, the end attachment is capable of passively absorbing broadband energy both at high and low frequencies, acting, in essence, as a passive broadband boundary controller. Complicated transitions in the damped dynamics can be interpreted based on the topological structure and bifurcations of the periodic solutions of the underlying undamped system. Moreover, complex resonance capture cascades are numerically encountered when we increase the number of degrees of freedom of the system. The ungrounded, essentially nonlinear end attachment discussed in this work can find application in numerous practical settings, including vibration and shock isolation of structures, seismic isolation, flutter suppression and packaging. Copyright © 2005 by ASME.	en
heal.journalName	Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005	en
dc.identifier.volume	1 C	en
dc.identifier.spage	1833	en
dc.identifier.epage	1843	en