Effects of Surface Roughness in Squeeze Film Lubrication of Two Parallel Plates
Journal Title: Tribology in Industry - Year 2015, Vol 37, Issue 2
Abstract
A generalized form of Reynolds equation for two surfaces is taken by considering surface roughness at the bearing surfaces. This equation is applied to study the effects of surface roughness for the lubrication of squeeze film of two parallel plates. Expressions for the load capacity and squeezing time are obtained and studied theoretically for various parameters. The load capacity and squeeze time increases with an increase in the value of which represent a ratio of the viscosity of the peripheral layer to the middle layer. In the case of transverse roughness the load capacity and squeezing time increases as the mean height of surface asperities increases and the load capacity and the squeezing time decreases as the mean height of surface asperities increases in the case of longitudinal roughness. Hence the effect of surface roughness is more pronounced in the case of transverse roughness.
Authors and Affiliations
J. V. Kumar , R. R. Rao
Keywords
Related Articles
- EP ID EP137725
- DOI -
- Views 84
- Downloads 0
Effect of Cryogenic Treatment on the Wear Behavior of Additive Manufactured 316L Stainless Steel
In this research work, an investigation is done to study the effect of cryogenic treatment on 316L SS fabricated using Direct Metal Laser Sintering process. Cryogenic treatment is done at -196°C for 24 hours in a chamber...
Ferrofluid Lubrication of a Rough Porous Hyperbolic Slider Bearing with Slip Velocity
An attempt has been made to study and analyze the combined effect of roughness and slip velocity on the performance of a ferrofluid based rough porous hyperbolic slider bearing. Beavers and Joseph’s slip model has been u...
Wear Micro-Mechanisms of Composite WC-Co/Cr - NiCrFeBSiC Coatings. Part II: Cavitation Erosion
Composite coatings with five different proportions of WC-Co/Cr and NiCrFeBSiC components were deposited on stainless steel by HVOF spraying. Cavitation erosion tests were performed and the material removal micro-mechanis...
Analyzing the Influence of the Construction Element Position on Torque Transmission by Friction
This paper is analyzing the impact of the construction element position of ship winch drum on the effects of torque transmission by friction in the mechanization welding process. The driving and driven wheels (constructi...
The Accelerated Aging Effect of Salt Water on Lignocellulosic Fibre Reinforced Composites
In recent years natural fibre reinforced composite materials have received an increasing attention in consideration of their biodegradability and admirable mechanical properties. The present paper reveals the experimenta...