Resumo

HERNANDEZ-MONTERO, Fidel Ernesto  e  GUTIERREZ-GARCIA, Michel. Analysis of encircling to the prosecution of vibrations for the diagnosis of machineries. Ingeniería Mecánica [online]. 2010, vol.13, n.1, pp. 31-40. ISSN 1815-5944.

Envelope analysis of vibrations is very employed on rolling bearings and gears failure detection due to low cost and high effectiveness of its implementation. This technique can be implemented through two ways: (1) filtering and (2) Hilbert transform, not compared one each other yet. In this paper, a mathematical effort, done in order to justify the capability of these approaches to be applied on rolling bearings diagnosis, is shown and a comparison between these two approaches is revealed. The Hilbert transform approach applied on envelope analysis was probed to be the most effective technique for rolling bearings failure detection.

Palavras-chave : rolling bearing; diagnosis; envelope; vibration.

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