Abstract
Unidimensional Analysis of Oil Velocity Fields in Lubricant Film in Effective Lubrication of a Sliding Journal Bearing
Highlights
Sliding bearings are commonly used in the design of such machines as combustion engines, pumps, compressors, generators, turbines, etc., in which kinematic joints are exposed to high and dynamically changing loads
An original equation was developed using finite element method (FEM) to determine fluid velocity depending on the angular velocity of journal ω and the width of gap h, which in turn is determined by the value of transverse journal load and the displacement of its geometrical centre in relation to the sleeve centre e
This study presents the application of FEM to solve an engineering problem in order to construct a computational model and to analyse oil velocity fields in the lubricating film of a journal bearing at a constant rotational velocity of the journal
Summary
Sliding bearings are commonly used in the design of such machines as combustion engines, pumps, compressors, generators, turbines, etc., in which kinematic joints are exposed to high and dynamically changing loads. The process of formation and degradation of the lubricating film was analysed using the hydrostatic or hydrodynamic lubrication theory, whose primary objective was to determine velocity fields and pressure of oil filling the gap between the faying surfaces [10,11,12,13,14,15,16,17,18,19] Those studies focused primarily on the assessment of the effect of bearing shape, plane of division of the journal, the number and shape of oil grooves on the lubrication mechanism. Parameters of the approximation function are determined using variational methods [20,21,22,23,24,25,26,27,28,29,30]
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