Effects of Hindrance Factors on a Squeeze Film of a Porous Bearing LubricatedWith a Dehaven Fluid
Journal Title: Machine Dynamics Problems - Year 2018, Vol 42, Issue 1
Abstract
In the paper the influence of the hindrance factors on the pressure distribution and loadcarrying capacity of a curvilinear thrust porous bearing is discussed. The equations of motion of a pseudo-plastic fluid of DeHaven are used to derive the Reynolds equation. The general considerations on the flow in a bearing clearance were presented. The analytical considerations on the flow in a thin porous layer composed of capillaries were also presented. Two models of the porous region were used, e.g.: capillary tube with constant cross-section and capillary tube with variable cross-section with rectilinear generatrices. Next, using the Morgan-Cameron approximation the modified Reynolds equation was obtained. As a result the formulae expressing pressure distribution and load-carrying capacity were obtained. Thrust radial bearing with a squeeze film of DeHaven fluid was considered as an example.
Authors and Affiliations
Anna Walicka, Edward Walicki, Piotr Jurczak, Janusz Falicki
Keywords
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