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Application of Three Order Cumulants in Fault Diagnosis
Department of Mathematics and Computer Science, Nanchang Normal University, Nanchang, China
- 1 Department of Mathematics and Computer Science, Nanchang Normal University, Nanchang, China
International Journal of Modern Nonlinear Theory and Application·Volume 07 (2018)·Pages 97–105·Published 21 December 2018·DOI10.4236/ijmnta.2018.74008
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Abstract
The three-order cumulants’ complex forms of different definitions include different coupling information of signals, and the information can be used to diagnose fault. In the experiment of pressure reducing valve’s fault diagnosis, through these different coupling information, the features of fault signals and normal signals were extracted by wavelet in different directions, then these features were inputted to diagnose the fault. The experiment shows that this method can achieve a satisfactory result.
KeywordsCumulantsCouplingWaveletFault Diagnosis
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