The Effect of Rotational Speed and Shaft Eccentric on Looseness of Bearing

This research was to study effect of rotational speed and eccentric factors, which were affected on looseness of bearing. The experiment was conducted on three rotational speeds and five eccentric distances with 5 replications. The results showed that influenced factor affected to looseness of bearing was rotational speed and eccentric distance which showed statistical significant. Higher rotational speed would cause on high looseness. Moreover, more eccentric distance, more looseness of bearing. Using bearing at high rotational with high eccentric of shaft would be affected bearing fault more than lower rotational speed. The prediction equation of looseness was generated by regression analysis. The prediction has an effected to the looseness of bearing at 91.5%.




References:
[1] Lu W and Chu F "Experimental investigation of pedestal looseness in a
rotor-bearing system" Key Engineering Materials Vol 413-414 (2009) ,
pp. 599-605
[2] Li X. "The analysis of vibration fault features and vibration
mechanism caused by Rotating machinery loosening" Advanced
Material Research, Vol 518-523 (2012) pp.3826-3829.
[3] Wu, T.-Y., Hong, H.-C., Chung, Y.-L. "A looseness identification
approach for rotating machinery based on post-processing of ensemble
empirical mode decomposition and autoregressive modeling" Journal
of Vibration and Control, Vol 18 (6) pp. 796-807
[4] Jayaswal, P., Verma, S.N., Wadhwani, A.K. "Application of ANN,
Fuzzy Logic and Wavelet Transform in machine fault diagnosis using
vibration signal analysis" Journal of Quality in Maintenance
Engineering Vol. 16 (2) , pp. 190-213.