Abstract
In this paper, the effects of additives on the base lubricants has been investigated and reported, aiming for enhancement and the improvement of hydrodynamic journal bearing performance. A pair of additives volume fractions with a viscosity ratio were considered as blended with the base binder. A dimensionless pressure distribution with improved viscosity over the lubricant film has been identified. The results show an increase on the pressure distribution in response to increase in volume fraction of the additives.
Highlights
For the past few decades, a number of research studies were carried out attempting to improve the performance of blended lubricants with additives, which have contributed to a better performance of hydrodynamic journal bearing
The common practice to such improvement is by adding or appending particles that possess a desirable properties that can potentially improve the base lubricant, some researchers have recognized the micro-scale properties of the additives for base lubricant, with specific interest on the thin film lubrication, they enhanced the blend mixture additive with an approach built by developing relationship among the additive important properties such as density, viscosity and volume fraction [1]
A pair of volume fraction of additives blended with the base lubricants have been used with different viscosity ratio
Summary
For the past few decades, a number of research studies were carried out attempting to improve the performance of blended lubricants with additives, which have contributed to a better performance of hydrodynamic journal bearing. The common practice to such improvement is by adding or appending particles that possess a desirable properties that can potentially improve the base lubricant, some researchers have recognized the micro-scale properties of the additives for base lubricant, with specific interest on the thin film lubrication, they enhanced the blend mixture additive with an approach built by developing relationship among the additive important properties such as density, viscosity and volume fraction [1]. Many researchers have studied to determine the possible effects of such non-Newtonian lubricants may have a significance on the performance of bearings [3].
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