What is it about?

Thick fluid film lubrication of two rollers (moving with different velocities)is studied. The lubricant is assumed to be non-Newtonian Power law fluid, and its consistency m is assumed to be pressure and temperature (the mean film temperature) dependent. The continuity equation along with the equation of motion and the energy equation are solved analytically with the prevailing boundary conditions. In the last, numerical solutions are obtained to deal with the effects of pressure and the mean temperature on the load , traction, cavitation points and the points of maximum pressure . The qualitative behaviors of the film pressure and temperature are compared with the previous findings and agree well with them.

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Why is it important?

problems with a non-Newtonian lubrication of rollers moving with different velocities by power law fluids are not studied much , as seen in the literature. Also here some mathematical approaches are adopted rather than fully numerical solutions. Hence, the solution is semi analytical, stability of the solution is not needed .

Perspectives

This paper gives a mathematical modeling of hydrodynamic theory of lubrication of rollers moving with different velocities. Also it deals with qualitative analysis of the solution of pressure and the mean film temperature, finally affecting the load characteristics of the bearings along with the traction force..

Dhaneshwar Prasad
Kanchi Mamunivar Centre for post graduate studies, Lawspet

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This page is a summary of: Characterization of lubrication of asymmetric rollers including thermal effects, Industrial Lubrication and Tribology, April 2015, Emerald,
DOI: 10.1108/ilt-04-2013-0048.
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