Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Volume 223, Issue J8, Pages 1179-1185Publisher
PROFESSIONAL ENGINEERING PUBLISHING LTD
DOI: 10.1243/13506501JET627
Keywords
porous partial journal bearings; squeeze films; micropolar fluids
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Funding
- UGC-New Delhi, INDIA
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On the basis of Eringen's micropolar fluid theory, a theoretical analysis of hydrodynamic squeeze film behaviour for short partial porous journal bearings lubricated by micropolar fluids is presented in this article. To take into account the micropolar effects because of the lubricant containing additives or suspended particles in a short partial porous journal bearing, the modified Reynolds equation governing the film pressure is derived. Expressions for the squeeze film pressure and load-carrying capacity are obtained. The first-order non-linear equation for the time-height relation is solved numerically by using the Runge-Kutta method. From the results obtained, it is observed that, the effect of micropolar fluid is to increase the load-carrying capacity and to lengthen the squeeze film time as compared to the corresponding Newtonian case. The effect of permeability is to reduce the load-carrying capacity and the squeeze film time as compared to the corresponding solid case.
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