Vol. 5 (04) pp. 1210-1225 DOI: 10.21474/IJAR01/3937

FAULT DIAGNOSIS ON BEARINGS IN SYNCHRONOUS MACHINE BY PROCESSING VIBRO-ACOUSTIC SIGNALS USING HIGHER ORDER SPECTRAL.

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  • Department of Electrical Engineering, Instituto Tecnol?gico de Mexicali, Mexicali, Baja California, M?xico.
  • Imperial Valley College, Calexico California, U.S.A.
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Abstract

This work presents a methodology for detecting faults in synchronous generator bearings using vibration signals recorded by acceleration transducers (piezoelectric accelerometers) and acoustic transducers (omnidirectional microphones). The advantage of using the spectra of higher-order (HOSA) in the diagnosis of faults in rotating electric machines bearings is analyzed. A comparison for two special cases of (HOSA) was made: spectral density of power (PSD) and biespectrum (BIS). Vibration signals of bearings without fail and with an artificially induced failure were analyzed. The artificial fault consisted of a crack produced on a SKF6303-2RSH bearing cage. This procedure allowed to determine that the BIS shows much more clearly the frequencies generated by the defective bearing.

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How to Cite This Article

Zulma Yadira Medrano Hurtado and Humberto Marcelo. (2017); FAULT DIAGNOSIS ON BEARINGS IN SYNCHRONOUS MACHINE BY PROCESSING VIBRO-ACOUSTIC SIGNALS USING HIGHER ORDER SPECTRAL., Int. J. of Adv. Res., 5 (04), 1210-1225, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/3937

Corresponding Author

zulmamh
Instituto Tecnologico de Mexicali
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