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Film thickness in a ball-on-disc contact lubricated with greases, bleed oils and base oils
INEGI, Universidade do Porto.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0002-4271-0380
INEGI, Universidade do Porto.
ISEP, Instituto Superior de Engenharia do Porto.
Vise andre og tillknytning
2012 (engelsk)Inngår i: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 53, s. 53-60Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Three different lubricating greases and their bleed and base oils were compared in terms of film thickness in a ball-on-disc test rig through optical interferometry. The theoretical values calculated according to Hamrock's equation are in close agreement with the base oil film thickness measurements, which validates the selected experimental methodology.The grease and bleed oil film thickness under fully flooded lubrication conditions presented quite similar behaviour and levels. Therefore, the grease film thickness under full film conditions might be predicted using their bleed oil properties, namely the viscosity and pressure-viscosity coefficient. The base and bleed oil lubricant parameter LP are proportional to the measured film thickness.A relationship between grease and the corresponding bleed oil film thickness was evidenced

sted, utgiver, år, opplag, sider
2012. Vol. 53, s. 53-60
HSV kategori
Forskningsprogram
Maskinelement
Identifikatorer
URN: urn:nbn:se:ltu:diva-11040DOI: 10.1016/j.triboint.2012.04.018ISI: 000305855900007Scopus ID: 2-s2.0-84860607993Lokal ID: 9f114086-eb89-483a-9473-dd9e9de0b4f0OAI: oai:DiVA.org:ltu-11040DiVA, id: diva2:983989
Merknad
Validerad; 2012; 20120502 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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