Influence of Different Viscosity Lubricant to Finite Line Contacts on Elastohydrodynamic Lubrication (EHL) under Oscillating

Abstract:

To make further researches into the elastohydrodynamic lubrication properties of a finite line contact roller, oscillating experiments were carried out on made overload experimental rig for oil film measurement using optical interference technique. Film thickness and shape were measured in two kinds of viscosity polyisobutylene. This study indicates that both lubricant viscosity and roller entrainment velocity play an important role on EHL of finite line contacts. On motion, the more increase in viscosity or speed, the thicker the oil film thickness, simultaneity edge effect is distinctly intensified and film thickness increases less on roller end, difference of the film thickness is increased between roller end and the central. Above two parameters are significant for logarithmic profile roller in crowning design.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 1939-1944
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.1939
• Online since: June 2012
• Authors: Yan Fei Wang, Tong Shu Hua, Hao Yang Sun
• Keywords: Edge Effect, Finite Line Contact, Oscillating, Viscosity

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