Proportional bandwidth properties of fault indicating tones in a ball bearing system

The proportional bandwidth properties of bearing generated tones are explored in a condition based maintenance context. A comparison, between time-frequency and time-scale (wavelet) detection techniques is performed using data gathered from an experimental set up. The wavelet techniques exhibit a 2 to 3 dB gain, depending on the harmonic number being detected.<<ETX>>

[1]  Victor Wowk,et al.  Machinery Vibration: Measurement and Analysis , 1991 .

[2]  G. W. Nickerson,et al.  A mechanical system condition-based maintenance demonstration model (naval shipboard machinery) , 1990, IEEE Conference on Systems Readiness Technology, 'Advancing Mission Accomplishment'..

[3]  K. R. Hardwicke,et al.  Coherent harmonic detection using non-stationary higher order spectra , 1992, [Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[4]  A. Grossmann,et al.  Cycle-octave and related transforms in seismic signal analysis , 1984 .

[5]  Gary R. Wilson,et al.  Frequency resolution properties of the wavelet transform for detecting harmonically related narrowband signals , 1993, 1993 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[6]  F. Harris.  On the use of windows for harmonic analysis with the discrete Fourier transform , 1978, Proceedings of the IEEE.