Analytical Formula for the Ratio of Central to Minimum Film Thickness in a Circular EHL Contact

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dc.contributor.authorŠperka, Petrcs
dc.contributor.authorKřupka, Ivancs
dc.contributor.authorHartl, Martincs
dc.coverage.issue3cs
dc.coverage.volume6cs
dc.date.accessioned2020-08-04T11:03:02Z
dc.date.available2020-08-04T11:03:02Z
dc.date.issued2018-09-07cs
dc.description.abstractPrediction of minimum film thickness is often used in practice for calculation of film parameter to design machine operation in full film regime. It was reported several times that majority of prediction formulas cannot match experimental data in terms of minimum film thickness. These standard prediction formulas give almost constant ratio between central and minimum film thickness while numerical calculations show ratio which spans from 1 to more than 3 depending on M and L parameters. In this paper, an analytical formula of this ratio is presented for lubricants with various pressure–viscosity coefficients. The analytical formula is compared with optical interferometry measurements and differences are discussed. It allows better prediction, compared to standard formulas, of minimum film thickness for wide range of M and L parameters.en
dc.formattextcs
dc.format.extent1-11cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationLubricants. 2018, vol. 6, issue 3, p. 1-11.en
dc.identifier.doi10.3390/lubricants6030080cs
dc.identifier.issn2075-4442cs
dc.identifier.other150792cs
dc.identifier.urihttp://hdl.handle.net/11012/138309
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofLubricantscs
dc.relation.urihttp://www.mdpi.com/2075-4442/6/3/80cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-4442/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectpoint contact lubricationen
dc.subjectminimum film thicknessen
dc.subjectprediction formulaen
dc.titleAnalytical Formula for the Ratio of Central to Minimum Film Thickness in a Circular EHL Contacten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-150792en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:03:02en
sync.item.modts2020.08.04 12:17:47en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
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