Resumo

MEDRANO HURTADO, Zulma Yadira  e  PEREZ TELLO, Carlos. Validation of acoustic vibes signals to diagnosis failure on synchronous generator bearings. Cienc. Ing. Neogranad. [online]. 2017, vol.27, n.2, pp.51-81. ISSN 0124-8170.  https://doi.org/10.18359/rcin.2180.

This paper describes the procedure and tools used in the measurement and diagnosis of vibration signals captured by acceleration transducers (piezoelectric accelerometers) and acoustic (omnidirectional microphones). Also, An experimental arrangement was developed using the Taguchi methodology to validate the recorded information of the vibration signals for bearings without failure and with an artificial failure, respectively. The artificial fault consisted of a crack produced in the cage of a bearing SKF-6303-2RSH. This method is non-invasive since it uses microphones to analyze the vibration, which means not having to mount any transducer at the machine besides being sensitive to failures in the cage.

Palavras-chave : Taguchi methodology; piezoelectric accelerometers; omnidirectional microphones; bearing.

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