A New Purification Method for Rotor Center’s Orbit by Using Ensemble Empirical Mode Decomposition

Abstract:

. Aiming at the purification of rotor center’s orbit, a new approach was presented by using ensemble empirical mode decomposition (EEMD). Ensemble empirical mode decomposition decomposed a complicated signal into a series of intrinsic mode functions (IMFs). Then according to prior knowledge of rotating machinery, chose some interested IMFs and reconstructed the needed signal. By doing this the noises would be eliminated successfully. At last the purification of rotor center’s orbit was obtained by extracting the useful signal component. Simulation and practical results show the advantage of EEMD in noise de-noising and purification of rotor center’s orbit. This method also has simple algorithm and high calculating speed; it provides a new way for purification of rotor center’s orbit of rotating machinery.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 801-804
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.801
• Online since: July 2014
• Authors: Wen Bin Zhang*, Jia Xing Zhu, Ya Song Pu, Yan Ping Su
• Keywords: Ensemble Empirical Mode Decomposition, Purification, Rotating Machinery, Rotor Center’s Orbit

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