This paper presents experimental vibration analysis of the induction motor by applying a short-time Fourier transform (STFT), which is one of the spectral analysis methods. Vibration data of a small-sized induction motor were obtained with a laser Doppler vibrometer (LDV). Experimental setup was assembled in order to register motor vibrations. Data-acquisition system was employed to register the vibrations of the induction motor. LDV measurement data was collected when the induction motor was operating at various speeds under no-load condition. The obtained data were analyzed by means of short-time Fourier transform method. Finally, the results of analysis were interpreted to demonstrate certain vibrational behavior of the motor.
About this article
09 October 2011
04 December 2011
31 December 2011
laser Doppler vibrometer
short-time Fourier transform (STFT) analysis
vibration analysis of induction motor
Copyright © 2011 Vibroengineering
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