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1 International Journal of Applied Mechanics and Engineering

1 2012

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Pressure distribution in a porous squeeze film bearing lubricated by a simple Casson fluid

Walicka A., Walicki E., Jurczak P.

International Journal of Applied Mechanics and Engineering

2012

Vol. 17, no. 3

1039-1049

The influence of a wall porosity on the pressure distribution in a curvilinear squeeze film bearing lubricated by a lubricant being a viscoplastic fluid of a simple Casson type is considered. After general considerations on the flow of the viscoplastic fluid (lubricant) in a bearing clearance and in a porous layer the modified Reynolds equation for the curvilinear squeeze film bearing with a Casson lubricant is given. The solution of this equation is obtained by a method of successive approximation. As a result one obtains a formula expressing the pressure distribution. The example of squeeze film in a step bearing (modeled by two parallel disks) is discussed in detail.