Effects of Surface Roughness in Elastohydrodynamic Lubrication.
- 1 January 1992
- journal article
- review article
- Published by Japan Society of Mechanical Engineers in JSME International Journal. Ser. 3, Vibration, Control Engineering, Engineering for Industry
- Vol. 35 (4) , 535-546
- https://doi.org/10.1299/jsmec1988.35.535
Abstract
The nominal film thickness in the elastohydrodynamic lubrication (EHL) regime is of the same order of magnitude as the surface roughness of contacting bodies. Since the breakdown of EHL films seems to be associated with asperity interactions, a detailed description of local fluctuations of EHL films and pressures caused by asperity interactions provides an important basis for a clearer understanding of the working performance of machine elements, the causes of surface failures and methods for their prevention. In this review, why and how EHL films are influenced by the surface kinematic conditions and the orientation and shape of surface irregularities are discussed based mainly on the experimental facts using model asperities. The results described will provide a clue to solving EHL problems in the mixed regime between full fluid film and boundary lubrication.Keywords
This publication has 14 references indexed in Scilit:
- Effects of Elastic Moduli of Contact Surfaces in Elastohydrodynamic LubricationJournal of Tribology, 1992
- Numerical Simulation of the Overrolling of a Surface Feature in an EHL Line ContactJournal of Tribology, 1991
- Micro-EHL in Lubricated Concentrated ContactsJournal of Tribology, 1990
- Elastohydrodynamic Lubrication of Circumferentially Finished Rollers having Sinusoidal RoughnessProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 1987
- The Effects of Surface Irregularities on the Elastohydrodynamic Lubrication of Sliding Line Contacts. Part I—Single IrregularitiesJournal of Tribology, 1984
- An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic LubricationJournal of Lubrication Technology, 1978
- The Contact of Two Nominally Flat Rough SurfacesProceedings of the Institution of Mechanical Engineers, 1970
- Stochastic Models for Hydrodynamic Lubrication of Rough SurfacesProceedings of the Institution of Mechanical Engineers, 1969
- Third Paper: Frictional Behaviour of Lubricated Rolling-Contact ElementsProceedings of the Institution of Mechanical Engineers, 1966
- Effect of Metallic Contact on the Pitting of Lubricated Rolling SurfacesJournal of Mechanical Engineering Science, 1962