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A simplified calculus method for a grease‐lubricated Rayleigh step bearing
Author(s) -
Radulescu A. V.,
Vasiliu F.
Publication year - 1999
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010110305
Subject(s) - grease , bearing (navigation) , rayleigh scattering , mechanics , flow (mathematics) , materials science , mathematics , calculus (dental) , mathematical analysis , computer science , composite material , physics , optics , medicine , dentistry , artificial intelligence
The paper presents a simplified method for the analytical calculus of a grease‐lubricated infinitely large Rayleigh step bearing. The principal problem of the grease flow through a Rayleigh step bearing is the shape of the stagnant core in the step region. This shape is determined using Navier‐Stokes equations resolved by the finite method element. The theoretical results are compared with those obtained experimentally by visualisation of the grease flow using the reflecting tracer method. The conclusion of the simplified method is that a Rayleigh step bearing lubricated with grease is equivalent to one lubricated with oil, but with a different configuration of the convergent interstice.