Analysis of couple stress fluid lubricated journal bearing with partial slip surface

Author

Rao, T.V.V.L.N. ; Rani, A.M.A. ; Nagarajan, T. ; Hashim, F.M.

Author_Institution

Dept. of Mech. Eng., Univ. Teknol. PETRONAS, Tronoh, Malaysia

fYear

2013

fDate

7-9 April 2013

Firstpage

807

Lastpage

811

Abstract

The present study examines the effects of partial slip bearing configuration on improvement in load capacity and reduction in friction coefficient for journal bearing lubricated with couple stress fluids. The couple stresses effects are analyzed based on Stokes micro-continuum theory and partial slip configuration is analyzed using Navier slip boundary conditions. The nondimensional pressure and shear stress expressions are derived based on one-dimensional analysis using modified Reynolds equation. Partial slip of bearing surfaces has a potential to improve load carrying capacity for couple stress fluid lubricated concentric journal bearing.

Keywords

Navier-Stokes equations; continuum mechanics; friction; lubrication; machine bearings; microfluidics; shear strength; slip flow; stress analysis; Reynolds equation; couple stress fluid lubricated concentric journal bearing; friction coefficient reduction improvement; load carrying capacity improvement; microcontinuum theory; nondimensional pressure; one-dimensional analysis; partial slip bearing configuration; partial slip configuration analyzed; partial slip surface; shear stress expressions; slip boundary conditions; Boundary conditions; Equations; Films; Fluids; Friction; Mathematical model; Stress; Coefficient of friction; Couple stress; Journal bearing; Load capacity; Partial slip;

fLanguage

English

Publisher

ieee

Conference_Titel

Business Engineering and Industrial Applications Colloquium (BEIAC), 2013 IEEE

Conference_Location

Langkawi

Print_ISBN

978-1-4673-5967-2

Type

conf

DOI

10.1109/BEIAC.2013.6560247

Filename

6560247