Abstract

While frequency analysis has become a classical diagnostic tool in vibration detection, the application of wavelet analysis has been developed for the last decade at a rapid rate. In this paper, its ability to detect particular vibration faults has been investigated. A detection method based on multi resolution analysis and coefficients thresholding is stated. The procedure depends on different parameters that must be tuned. The choice of those parameters is described and the computational cost is discussed. This procedure has been applied to industrial data from a main drive of a roughing mill. Copyright © 2004 IFAC

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