To read this content please select one of the options below:

Investigation of sustainability of lubricated journal bearing under relevant design parameters

M.M. Shahin (Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh)
Mohammad Asaduzzaman Chowdhury (Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh)
Md. Arefin Kowser (Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh)
Uttam Kumar Debnath (Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh)
M.H. Monir (Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 8 May 2018

208

Abstract

Purpose

The purposes of the present study are to ensure higher sustainability of journal bearings under different applied loads and to observe bearing performances such as elastic strain, total deformation and stress formation.

Design/methodology/approach

A journal bearing test rig was used to determine the effect of the applied load on the bearing friction, film thickness, lubricant film pressure, etc. A steady-state analysis was performed to obtain the bearing performance.

Findings

An efficient aspect ratio (L/D) range was obtained to increase the durability or the stability of the bearing while the bearing is in the working condition by using SAE 5W-30 oil. The results from the study were compared with previous studies in which different types of oil and water, such as Newtonian fluid (NF), magnetorheological fluid (MRF) and nonmagnetorheological fluid (NMRF), were used as the lubricant. To ensure a preferable aspect ratio range (0.25-0.50), a computational fluid dynamics (CFD) analysis was conducted by ANSYS; the results show a lower elastic strain and deformation within the preferable aspect ratio (0.25-0.50) rather than a higher aspect ratio using the SAE 5W-30 oil.

Originality/value

It is expected that the findings of this study will contribute to the improvement of the bearing design and the bearing lubricating system.

Keywords

Acknowledgements

The authors would like to thank Dhaka University of Engineering & Technology for financial and technical support through University Grants Commission (UGC), Bangladesh, Bangladesh National Scientific and Technical Documentation Centre (BANSDOC) and Bangladesh Atomic Energy Commission (BAEC).

Citation

Shahin, M.M., Chowdhury, M.A., Kowser, M.A., Debnath, U.K. and Monir, M.H. (2018), "Investigation of sustainability of lubricated journal bearing under relevant design parameters", Industrial Lubrication and Tribology, Vol. 70 No. 4, pp. 789-804. https://doi.org/10.1108/ILT-02-2017-0039

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

Related articles