Application of the EMD method in the vibration analysis of ball bearings

被引：108

作者：

Du, Qiuhua ^{[1
]}

Yang, Shunian ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Instruments Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2007年 / 21卷 / 06期

关键词：

empirical mode decomposition; intrinsic mode function; local mean operator; the average mean; the wavelet decomposition; vibration analysis; ball bearings;

D O I：

10.1016/j.ymssp.2007.01.006

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2634 / 2644

页数：11

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