On the effects of mistuning a force-excited system containing a quasi-zero-stiffness vibration isolator

dc.contributorUniv Loughborough
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniv Southampton
dc.contributorDalian Univ Technol
dc.creatorAbolfathi, Ali
dc.creatorBrennan, Michael John [UNESP]
dc.creatorWaters, T. P.
dc.creatorTang, B.
dc.date2015-10-21T21:17:27Z
dc.date2015-10-21T21:17:27Z
dc.date2015-08-01
dc.date.accessioned2023-09-12T06:56:24Z
dc.date.available2023-09-12T06:56:24Z
dc.identifierhttp://vibrationacoustics.asmedigitalcollection.asme.org/article.aspx?articleid=2108955
dc.identifierJournal Of Vibration And Acoustics-transactions Of The Asme, v. 137, n. 4, 6 p., 2015.
dc.identifier1048-9002
dc.identifierhttp://hdl.handle.net/11449/129528
dc.identifier10.1115/1.4029689
dc.identifierWOS:000357162500021
dc.identifier3283762683761655
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8778867
dc.descriptionNonlinear isolators with high-static-low-dynamic-stiffness have received considerable attention in the recent literature due to their performance benefits compared to linear vibration isolators. A quasi-zero-stiffness (QZS) isolator is a particular case of this type of isolator, which has a zero dynamic stiffness at the static equilibrium position. These types of isolators can be used to achieve very low frequency vibration isolation, but a drawback is that they have purely hardening stiffness behavior. If something occurs to destroy the symmetry of the system, for example, by an additional static load being applied to the isolator during operation, or by the incorrect mass being suspended on the isolator, then the isolator behavior will change dramatically. The question is whether this will be detrimental to the performance of the isolator and this is addressed in this paper. The analysis in this paper shows that although the asymmetry will degrade the performance of the isolator compared to the perfectly tuned case, it will still perform better than the corresponding linear isolator provided that the amplitude of excitation is not too large.
dc.descriptionNational Natural Science Foundation of China
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionUniv Loughborough, Aeronaut &Automot Engn, Loughborough LE11 3TU, Leics, England
dc.descriptionUniv Estadual Paulista, Dept Mech Engn, BR-15385000 Sao Paulo, Brazil
dc.descriptionUniv Southampton, Inst Sound &Vibrat Res, Southampton SO17 1BJ, Hants, England
dc.descriptionDalian Univ Technol, Inst Internal Combust Engine, Dalian 116023, Peoples R China
dc.descriptionUniv Estadual Paulista, Dept Mech Engn, BR-15385000 Sao Paulo, Brazil
dc.descriptionNational Natural Science Foundation of China: 11202048
dc.descriptionCNPq: 401360/2012-1
dc.format6
dc.languageeng
dc.publisherAsme
dc.relationJournal Of Vibration And Acoustics-transactions Of The Asme
dc.relation1.777
dc.relation0,910
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleOn the effects of mistuning a force-excited system containing a quasi-zero-stiffness vibration isolator
dc.typeArtigo


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