The effect of top of rail lubricant composition on adhesion and rheological behaviour

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dc.contributor.authorKvarda, Danielcs
dc.contributor.authorSkurka, Šimoncs
dc.contributor.authorGalas, Radovancs
dc.contributor.authorOmasta, Milancs
dc.contributor.authorShi, Lu-bingcs
dc.contributor.authorDing, Haohaocs
dc.contributor.authorWang, Wenjiancs
dc.contributor.authorKřupka, Ivancs
dc.contributor.authorHartl, Martincs
dc.coverage.issue1cs
dc.coverage.volume35cs
dc.date.issued2022-01-23cs
dc.description.abstractThe effect of top of rail lubricant composition on adhesion has been investigated using a laboratory ball-on-disc tribometer. Rheological properties were analysed using viscosimeter and high pressure torsion device. As a base medium, a biodegradable ester oil with bentonite thickener was selected. Added particles for friction modification were aluminium oxide, zinc oxide, copper sulfide and solid lubricants molybdenum disulfide and graphite. The effect of these components in the base medium on adhesion was evaluated. It was found that the most dominant component was the solid particles for friction modification. Based on the results, top of rail lubricant substances were prepared and tested. The best performing substances provided the optimal level of adhesion. These substances also showed resilience to overdosing, which caused commercial products to provide very low adhesion conditions. The rheological investigation confirmed the very low adhesion is controlled by elastohydrodynamic regime while the stable values are a result of transition to boundary lubrication.en
dc.description.abstractThe effect of top of rail lubricant composition on adhesion has been investigated using a laboratory ball-on-disc tribometer. Rheological properties were analysed using viscosimeter and high pressure torsion device. As a base medium, a biodegradable ester oil with bentonite thickener was selected. Added particles for friction modification were aluminium oxide, zinc oxide, copper sulfide and solid lubricants molybdenum disulfide and graphite. The effect of these components in the base medium on adhesion was evaluated. It was found that the most dominant component was the solid particles for friction modification. Based on the results, top of rail lubricant substances were prepared and tested. The best performing substances provided the optimal level of adhesion. These substances also showed resilience to overdosing, which caused commercial products to provide very low adhesion conditions. The rheological investigation confirmed the very low adhesion is controlled by elastohydrodynamic regime while the stable values are a result of transition to boundary lubrication.en
dc.formattextcs
dc.format.extent101100-101108cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEngineering Science and Technology, an International Journal. 2022, vol. 35, issue 1, p. 101100-101108.en
dc.identifier.doi10.1016/j.jestch.2022.101100cs
dc.identifier.issn2215-0986cs
dc.identifier.orcid0000-0002-5386-2486cs
dc.identifier.orcid0000-0001-6752-6806cs
dc.identifier.orcid0000-0001-7364-899Xcs
dc.identifier.orcid0000-0002-1448-3731cs
dc.identifier.orcid0000-0002-9936-7480cs
dc.identifier.orcid0000-0001-5432-6645cs
dc.identifier.other176840cs
dc.identifier.researcheridU-2251-2017cs
dc.identifier.researcheridHZJ-4382-2023cs
dc.identifier.researcheridM-5936-2014cs
dc.identifier.researcheridG-5052-2012cs
dc.identifier.researcheridD-8147-2012cs
dc.identifier.researcheridD-8261-2012cs
dc.identifier.scopus57441117400cs
dc.identifier.scopus57191479291cs
dc.identifier.scopus7005196946cs
dc.identifier.urihttp://hdl.handle.net/11012/208181
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofEngineering Science and Technology, an International Journalcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2215098622000088cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2215-0986/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCoefficient of adhesionen
dc.subjectTop of rail lubricationen
dc.subjectWheel-rail tribologyen
dc.subjectRheologyen
dc.subjectNumerical modelen
dc.subjectCoefficient of adhesion
dc.subjectTop of rail lubrication
dc.subjectWheel-rail tribology
dc.subjectRheology
dc.subjectNumerical model
dc.titleThe effect of top of rail lubricant composition on adhesion and rheological behaviouren
dc.title.alternativeThe effect of top of rail lubricant composition on adhesion and rheological behaviouren
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176840en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 15:06:35en
sync.item.modts2025.10.14 10:49:59en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs

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