Abstract
The oil-film pressure is a key factor used to examine the performance of a journal bearing. The developed nano lubricant was used as an alternate lubricant for journal bearing system described in the present study. For this purpose, oil-film pressure of the journal bearing was analyzed by using COMSOL multi physics and developed the oil-film pressure of the journal bearing lubricated with various lubricants. The COMSOL results stated that, this model is suitable for analyzing the pressure of an oil-film of the journal bearing and these results were compared with experimental results.
Highlights
Most of the mechanical systems possess hydrodynamic journal bearings
Further the experimental results were compared with the developed COMSOL multi physics model and indicated that the experimental result is in good agreement with the COMSOL multi physics finite element model
A COMSOL model was used to develop pressure of an oil-film of a bearing with various nano lubricants and the result is: 1. A finite element analysis (FEA) model results and experimental values are fairly closer and expressed that the COMSOL approach can be successfully utilized to develop oilfilm pressure of the bearing lubricated with the nano lubricants
Summary
The performance of the hydrodynamic journal bearing depends on the high load, high speed and higher operating temperature [1]. The experimental work carried out by onefactor-at-a-time was applied to estimate bearing characteristics by varying one variable with other parameter is a constant. These methods were difficult, time consuming and infrequently guarantees to determine the optimal conditions [5]. The existing literature considered that the journal bearing pressure was studied by using the onefactor-at-a-time method [6]. Various dimensionless parameters with different L/D ratio resulted for a Bingham lubricant and concluded that Bingham lubricant showed better results than Newtonian lubricant as oil-film pressure, frictional force, and load carrying capacity increased effectively. Hou Yu et al [11]
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