Elastohydrodynamic Film Thickness Measurements of Artificially Produced Surface Dents and Grooves
- 1 January 1979
- journal article
- research article
- Published by Taylor & Francis in A S L E Transactions
- Vol. 22 (4) , 369-381
- https://doi.org/10.1080/05698197908982938
Abstract
Elastohydrodynamic (EHD) film thickness measurements using optical interferometry have been made of artificially produced dents and grooves under rolling and sliding conditions. These measurements are compared to stylus traces of the dent and groove profiles to determine the local deformation associated with micro-EHD pressure generation. The surface geometry associated with the dents and grooves is seen to become intimately involved in the lubrication process itself, creating local pressure variations that substantially deform the local surface geometry, particularly under sliding conditions. The rolling results have implications concerning surface initiated fatigue and the sliding results show clearly the EHD surface interactions that must occur prior to scuffing failure.Keywords
This publication has 28 references indexed in Scilit:
- Lubrication of Surfaces Having Area-Distributed Isotropic RoughnessJournal of Lubrication Technology, 1977
- First Effects of Stokes Roughness on Hydrodynamic LubricationJournal of Lubrication Technology, 1977
- Surface Roughness Effects on Fatigue in Partial EHD LubricationJournal of Lubrication Technology, 1976
- The Hydrodynamic Lubrication of Rough Journal BearingsJournal of Lubrication Technology, 1973
- The theory of partial elastohydrodynamic contactsWear, 1972
- Waviness and Roughness in Hydrodynamic LubricationProceedings of the Institution of Mechanical Engineers, 1972
- A Theory of Mixed LubricationProceedings of the Institution of Mechanical Engineers, 1972
- The Hydrodynamic Lubrication of Rough Bearing Surfaces of Finite WidthJournal of Lubrication Technology, 1971
- An engineering model of spalling fatigue failure in rolling contact: II. The surface modelWear, 1971
- Stochastic Models for Hydrodynamic Lubrication of Rough SurfacesProceedings of the Institution of Mechanical Engineers, 1969