Reduced order modelling in nonlinear mechanical oscillators with energy pumping

Ma, X; Vakakis, AF; Bergman, LA

dc.contributor.author	Ma, X	en
dc.contributor.author	Vakakis, AF	en
dc.contributor.author	Bergman, LA	en
dc.date.accessioned	2014-03-01T02:50:11Z
dc.date.available	2014-03-01T02:50:11Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34941
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33144480883&partnerID=40&md5=35f9590f08725d54d16fb9173de82cef	en
dc.subject.other	Computer simulation	en
dc.subject.other	Degrees of freedom (mechanics)	en
dc.subject.other	Diagnosis	en
dc.subject.other	Mathematical models	en
dc.subject.other	Monitoring	en
dc.subject.other	Numerical methods	en
dc.subject.other	Energy pumping	en
dc.subject.other	Karhunen-Loeve (K-L) decomposition method	en
dc.subject.other	Mechanical systems	en
dc.subject.other	Nonlinear components	en
dc.subject.other	Oscillators (mechanical)	en
dc.title	Reduced order modelling in nonlinear mechanical oscillators with energy pumping	en
heal.type	conferenceItem	en
heal.publicationDate	2005	en
heal.abstract	Energy pumping in nonlinear mechanical oscillators has been discovered and studied in mechanical systems consisting of weakly coupled, linear and nonlinear components [1-3]. In this paper this phenomenon is further studied and numerically verified on an 11 degree of freedom system. It also presents a technique to create low dimensional models for energy pumping systems using the Karhunen-Loeve (K-L) decomposition method. It is shown that energy pumping can be identified from the dominant K-L modes. The low dimensional models are used to reconstruct the system responses. From the comparisons between the reconstructed and simulated response, we can see that the K-L mode-based low-dimensional model can represent the system responses; it can be used for monitoring, diagnosis and control purposes. 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	1925	en
dc.identifier.epage	1931	en