Vibration Fault Diagnosis Method of Centrifugal Pump Based on EMD Complexity Feature and Least Square Support Vector Machine
Feature vector
Mode (computer interface)
Feature (linguistics)
DOI:
10.1016/j.egypro.2012.02.191
Publication Date:
2012-04-25T00:28:11Z
AUTHORS (2)
ABSTRACT
Aiming at the non-stationary and non-linearity characteristics of vibration signals centrifugal pump, a new method based on complexity feature Empirical Mode Decomposition (EMD) Least Square Support Vector Machine (LS-SVM) is put forward. First all, was used to decompose into finite number stationary Intrinsic Functions (IMF), then features each IMF extracted as fault vectors served input parameters LS-SVM classifier diagnosis fault. Application results showed that proposed very effective, which can better extract nonlinear more exactly
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