Original scientific paper

https://doi.org/10.17559/TV-20180406095904

Unidimensional Analysis of Oil Velocity Fields in Lubricant Film in Effective Lubrication of a Sliding Journal Bearing

Piotr Rybacki* ; Department of Agronomy, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland
Zenon Grześ ; Department of Biosystems Engineering, Poznań University of Life Sciences, 50 Wojska Polskiego St., 60-637 Poznań, Poland

Abstract

In order to provide effective lubrication in a sliding journal bearing unidimensional analysis was conducted to investigate oil flow velocity in the lubricant film formed in the gap between the shaft journal and the sleeve. An original equation was developed using 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. Mathematical models were developed, which were subjected to simulation studies in order to verify their logical accuracy. Results facilitate a more precise and rapid selection of work parameters for transversely loaded sliding bearings. Moreover, these results may be used in further multi-criterion analyses of lubrication parameters for sliding bearings during their operation.

Keywords

FEM; fluid mechanics; lubricant film; sliding bearing

Hrčak ID:

258111

URI

https://hrcak.srce.hr/258111

Publication date:

6.6.2021.

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