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ORIGINAL PAPER
Thrust Bearing with Rough Surfaces Lubricated by an Ellis Fluid
1
University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, Poland
2
University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, Poland J.Falicki@ibem.uz.zgora.pl
Online publication date: 2014-12-30
Publication date: 2014-11-01
International Journal of Applied Mechanics and Engineering 2014;19(4):809-822
KEYWORDS
ABSTRACT
In the paper the influence of bearing surfaces roughness on the pressure distribution and load-carrying capacity of a thrust bearing is discussed. The equations of motion of an Ellis pseudo-plastic fluid are used to derive the Reynolds equation. After general considerations on the flow in a bearing clearance and using the Christensen theory of hydrodynamic rough lubrication the modified Reynolds equation is obtained. The analytical solutions of this equation for the cases of a squeeze film bearing and an externally pressurized bearing are presented. As a result one obtains the formulae expressing pressure distribution and load-carrying capacity. A thrust radial bearing is considered as a numerical example.
FUNDING
This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
CONFLICT OF INTEREST
The authors declare that they have no conflict of interest.
DATA AVAILABILITY
All data generated or analysed during this study are included in this published article.
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