Analytical investigation of a partially textured parallel slider

Abstract The article presents a one-dimensional isothermal flow model with analytical solution for partially textured surfaces, nominally parallel. The model allows a simple and elegant parametric analysis of slider performance characteristics (load-carrying capacity, friction force, and friction co...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part J, Journal of engineering tribology Journal of engineering tribology, 2009-03, Vol.223 (2), p.151-158
Main Authors: Pascovici, M D, Cicone, T, Fillon, M, Dobrica, M B
Format: Article
Language:English
Subjects:
Bearing
Bearings
Design analysis
Design parameters
Dimensional analysis
Dimpling
Equivalence
Fluid mechanics
Friction
Isothermal flow
Load carrying capacity
Lubricants & lubrication
Mathematical models
Mechanical engineering
Optimization
Parametric analysis
Surface layers
Texture
Tribology
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Summary:Abstract The article presents a one-dimensional isothermal flow model with analytical solution for partially textured surfaces, nominally parallel. The model allows a simple and elegant parametric analysis of slider performance characteristics (load-carrying capacity, friction force, and friction coefficient) in terms of texture dimensions. It is shown that the friction force and load-carrying capacity do not practically depend on the number of cells. Optimum values of design parameters (dimensionless dimple depth and dimensionless textured length), allowing for maximum load-carrying capacity and minimum friction coefficient, are presented in the dimensionless form. The same model is used to give a phenomenologically based solution for the ‘equivalent step bearing’ in terms of load-carrying capacity or friction coefficient. The results show that the concept of equivalent step bearing is questionable, as the equivalent height of the step bearing is not uniquely determined.
ISSN:1350-6501
2041-305X
DOI:10.1243/13506501JET470