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ORIGINAL PAPER
Porous Squeeze Film Bearing with Rough Surfaces Lubricated by a Bingham Fluid
1
University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, Poland
Online publication date: 2014-12-30
Publication date: 2014-11-01
International Journal of Applied Mechanics and Engineering 2014;19(4):795-808
KEYWORDS
ABSTRACT
In the paper the effect of both bearing surfaces and the porosity of one bearing surface on the pressure distribution and load-carrying capacity of a squeeze film bearing is discussed. The equations of motion of a Bingham fluid in a bearing clearance and in a porous layer are presented. Using the Morgan-Cameron approximation and Christensen theory of rough lubrication the modified Reynolds equation is obtained. The analytical solutions of this equation for a squeeze film bearing are presented. As a result one obtains the formulae expressing pressure distribution and load-carrying capacity. A thrust radial bearing is considered as a numerical example.
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