Vibration Analyses of the Bearing Using the Time Frequency Domain Technique

Abstract:

This work employs the wavelet transform for reading the fault diagnosis in a rotor-bearing system. Initiating with literature review with some relevant studies of bearing fault and the signal processing techniques used followed by the theory of wavelet transform. A bearing test rig is shown which is used for implementing wavelet transform. A faulty bearing vibration signal is measured from the test rig; thereafter the fast Fourier transform is plotted to show the critical frequencies, bearing characteristics frequency and its harmonics. A scalogram showing the energy levels of signal is plotted as result. Faulty signal is analyzed using wavelet transform.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 2091-2096
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.2091
• Online since: July 2014
• Authors: H.N. Sharma*, Santosh Verma
• Keywords: Bearing Fault, Critical Frequencies, Scalogram, Wavelet Transform (WT)

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