Numerical computation of the damping and stiffness coefficients of the classical and magnetorheological squeeze film damper

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dc.contributor.authorFerfecki, Petrcs
dc.contributor.authorZapoměl, Jaroslavcs
dc.contributor.authorŠofer, Michalcs
dc.contributor.authorPochylý, Františekcs
dc.contributor.authorFialová, Simonacs
dc.coverage.issue1cs
dc.coverage.volume157cs
dc.date.issued2018-03-14cs
dc.description.abstractTechnological solution, frequently used to suppress vibrations in rotating machines, consists in adding damping devices between the rotor and its frame. This is enabled by dampers working on the principle of a squeezing thin classical or magnetorheological fluid film. The Navier-Stokes equations, Reynolds equation, and modified Navier-Stokes equations are used to determine the pressure distribution in the thin fluid film. The damping and stiffness coefficients are computed by the developed procedure presented in this paper. The proposed computational approach is based on the perturbation of the synchronous circular whirling motion. The carriedout computational simulations show that the investigated mathematical models of the squeeze film damper and magnetorheological squeeze film damper allowed computation of the damping and stiffness coefficients. It has been found that the stiffness coefficients computed by the proposed mathematical models may be different.en
dc.formattextcs
dc.format.extent080011-0800112cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMATEC Web of Conferences. 2018, vol. 157, issue 1, p. 080011-0800112.en
dc.identifier.doi10.1051/matecconf/201815708001cs
dc.identifier.issn2261-236Xcs
dc.identifier.orcid0000-0001-6408-1960cs
dc.identifier.orcid0000-0002-8776-4219cs
dc.identifier.other146662cs
dc.identifier.researcheridD-9404-2018cs
dc.identifier.researcheridR-4959-2017cs
dc.identifier.scopus8582621100cs
dc.identifier.scopus54943181000cs
dc.identifier.urihttp://hdl.handle.net/11012/196433
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofMATEC Web of Conferencescs
dc.relation.urihttps://www.matec-conferences.org/articles/matecconf/pdf/2018/16/matecconf_mms2018_08001.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2261-236X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSqueeze film damperen
dc.subjectMagnetorheological fluiden
dc.subjectHydraulic forcesen
dc.subjectNavier-Stokes equationsen
dc.subjectReynolds equationen
dc.titleNumerical computation of the damping and stiffness coefficients of the classical and magnetorheological squeeze film damperen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-146662en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:50en
sync.item.modts2025.01.17 15:27:40en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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