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摘要:
The Empirical Mode Decomposition (EMD) is used for decomposing nonstationary and nonlinear signals to stationary and linear ones, and Intrinsic Mode Functions (IMFs) can be gained, they contain only a single group of frequencies. In order to reduce interference of abnormal events to the EMD method, the correlation analysis was used to eliminate abnormal events. The method to separate rotor imbalance vibration signals accurately was put forward based on EMD method and imbalance vibration theories, it could be used to monitor imbalance vibration and dynamic balancing. The validity of the proposed method was verified with example analysis.
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来源 :
Journal of Vibration and Shock
ISSN: 1000-3835
年份: 2012
期: 7
卷: 31
页码: 34-38
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