The Comparison of Acoustic Emission with Vibration for Fault Diagnosis of the Bearing

Abstract:

The fault diagnosis of rolling bearing plays a significant role in rotating machinery. This paper makes a comparison between the acoustic emission and vibration signal in the fault diagnosis of the bearing of outer race pitting. The acoustic emission and vibration signal are processed by the wavelet transform, Hilbert envelope transform and FFT transform. Finally, the spectrum charts of the signals of acoustic emission and vibration are drew out. Based on the analysis results, the conclusion can be drawn that acoustic emission is superior to vibration in the fault diagnosis of the bearing.

• Periodical: Applied Mechanics and Materials (Volume 141)
• Pages: 539-543
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.141.539
• Online since: November 2011
• Authors: Xiao Liang Feng, Guo Feng Wang, Xu Da Qin, Chang Liu
• Keywords: Acoustic Emission (AE), Fast Fourier Transform (FFT), Vibration, Wavelet Transform (WT)

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