A Technical Review on the Study of Stability Analysis of Non-Circular Bearings Lubricated with Newtonian/Non-Newtonian Fluids
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2019, Vol 9, Issue 1
Abstract
In recent years, applications of non-Newtonian fluids as lubricants have received great interest since the use of these non-Newtonian lubricants showed an increase in load carrying capacity and reduction in frictional force with the esca-lation in additives concentration. The demands of the present day industry rotating machinery includes high speed, compactness, light weight engines, high operating loads, high power transmission, high efficiency, and high perfor-mance of the engine. As a result of high speed machines, bearings are inclined to have excessive power loss and increase in oil temperature. The former reduces the efficiency of the engine and the latter causes the undesired changes in the lubricating oil. The plain journal bearings at high rotation speeds are subjected to instability like oil whirl and whip ruining the bearing and also the machine. Therefore, this poses a need to change in the bearing design. In the present paper, an attempt is made to briefly introduce the various non-linear models used and the different approaches that have been carried out by the researches in the past few years to improve and achieve the stability of journal bearing along with enhanced performances and characteristics.
Authors and Affiliations
A. R. Amar Murthy, Raghunandana. K
Keywords
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- EP ID EP463951
- DOI 10.24247/ijmperdfeb201945
- Views 60
- Downloads 0
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