The Output Analysis of Backlash Nonlinearity System Based on Modified EMD Method

被引：0

作者：

Hu, Hong-Ying ^{[1
]}

Luo, Yue-Gang ^{[1
]}

Zhao, Feng-Qiang ^{[1
]}

机构：

[1] Dalian Nationalities Univ, Sch Electromech Informat Engn, Dalian, Peoples R China

来源：

2015 INTERNATIONAL CONFERENCE ON MECHANICAL SCIENCE AND MECHANICAL DESIGN, MSMD 2015 | 2015年

关键词：

Empirical Mode Decomposition (EMD); Frequency heterodyne; Backlash nonlinearity system; HILBERT SPECTRUM; DECOMPOSITION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Empirical Mode Decomposition (EMD) is an adaptive decomposition method developed recently in non-stationary signal processing field. But one of the major drawbacks of the EMD is that, when high frequency components in a signal contain intermittence, the result of EMD appears mode-mixing in time domain. The paper discusses a modified mode-mixing resistant EMD method: frequency heterodyne method. The principle and the operating steps of the method are studied in detail. The simulation and application in a backlash nonlinearity system shows that the method can successfully solve the mode-mixing problem in normal EMD method.

引用

页码：597 / 602

页数：6

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