Analysis of vibration signals and surface characteristics of cylindrical roller bearing
Loading...
Date
2014
Authors
Ahmad, Andree
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
This work aims to establish the relation between the vibration level and the
surface roughness of the bearing running under lightly oiled, greased and dry
conditions. Tests were performed at a fixed load of 633 N and speed of 1500 rpm.
The mechanical vibration and the surface condition were measured at thirty minutes
interval. The result showed that the vibration level of the lightly oiled bearing
increases with the surface roughness, and failure was detected after 90 minutes. For
the grease lubricated condition, the acceleration level increases with the surface
roughness and failure of the bearing occurred after 6480 minutes of running. For the
dry un-lubricated bearing, failure occurred after 20 minutes.
Measurement of the surface characteristic parameters include Ra (average
roughness of profile), skewness, kurtosis and waviness were made to monitor these
surface parameters variation and their relationship with the vibration of the bearing.
The Pearson Correlation coefficient of each surface roughness parameters with the
rms vibration level is calculated. The surface waviness shows the highest Pearson
Correlation coefficient of 0.8. This analysis showed that the surface roughness can be correlated with the vibration level of the bearing.