Separating the Time Field Signal of Rotor Unbalance Vibration Based on EMD Method

Shi Hai Zhang; Xiong Wen Guo; Zi Miao Zhang

doi:10.4028/www.scientific.net/AMR.989-994.3204

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Separating the Time Field Signal of Rotor...

Separating the Time Field Signal of Rotor Unbalance Vibration Based on EMD Method

Abstract:

It is the premise conditions of dynamic balance monitoring and control technology that the unbalance vibration signal is separated accurately. Based on the theory analysis of EMD (Empirical Mode Decomposition), the time field method of unbalance vibration signal separation is proposed. The basic principle is that the reference signal and radial vibration of rotor must be simultaneously measured, and then the IMF(Intrinsic Mode Function) components are separated based on the EMD method. The time field signal of unbalance vibration can be identified by comparing the IMF’s frequency with rotational frequency. The method effectiveness has been proved by experimental data analysis.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

3204-3207

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.3204

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Online since:

July 2014

Authors:

Shi Hai Zhang*, Xiong Wen Guo, Zi Miao Zhang

Keywords:

EMD, Signal Separation, Time Field, Unbalance Vibration

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* - Corresponding Author

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