Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
565780 | Mechanical Systems and Signal Processing | 2007 | 11 Pages |
Abstract
In this paper, the empirical mode decomposition (EMD) method is introduced and the calculation of the local mean with the envelope method of the extrema is substituted by an improved method, in which the local mean is computed by using the average method of the successive extrema. Based on the improved EMD method, the vibration signals of ball bearings are analyzed in detail. The results show that the proposed method is superior to the discrete wavelet decomposition for the vibration analysis of ball bearings.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Qiuhua Du, Shunian Yang,