Experimental investigation on dynamic characteristics of journal bearing
Authors
-
,IN
S. Dinakaran -
,INS. Ramesh
-
,INSatish Babu Boppana
-
,INAshish Srivastava
DOI:
https://doi.org/10.18311/jmmf/2021/30095Keywords:
Stiffness co-efficient, frequency, L/D ratio, eccentricity ratio.Abstract
The aim of this experimental investigation is to investigate the dynamic characteristics of journal bearing. The process involves lubrication using couple stress fluid. The theoretical study has been analyzed based on the dynamic Reynolds governing equation for various lengths to diameter ratios, ratio of eccentricity, damping coefficient and stiffness of the systems and the results have been reported. The work involves using Newton’s multivariate interpolation, the empirical relationship is derived at different ratio of eccentricity, L/D ratio as well as dynamic coefficients. It is observed that beyond 0.7 eccentricity ratio, small disturbances affect in a higher stability in the journal bearing system. The theoretical study results have been compared to experimental test kit result for various L/D ratios. The dynamic characteristics such as displacement, velocity and acceleration values have been noted from the test kit and the instability conditions of the system have been verified from the theoretical results.
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Accepted 2022-04-27
Published 2022-04-28
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