Journal Press India^®

Author Details ( * ) denotes Corresponding author

The purpose of this paper is to theoretically study the effect of aspect ratio on the performance of fluid-film bearing system .Based upon the dynamic Reynolds governing equation for the different aspect ratio, the various performance parameters: eccentricity ratio, maximum pressure, coefficient of friction, minimum film thickness, attitude angle, direct and cross-coupled stiffness and damping coefficients, threshold speed, whirl-frequency ratio and critical mass of hydrodynamic journal bearings are evaluated. The aspect ratios (L/D) are considered 0.5, 1.0 and 1.5 for the analysis of purpose. The influence of L/D ratio on bearing performance parameters for a wide range of Somerfield number has been presented. The results could be useful to give more insight to bearing designer for predicting a suitable L/D ratio for enhanced stable bearing operations

Keywords

Hydrodynamic Journal Bearing; FEM; Aspect Ratio.

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