TITLE:
Application of Three Order Cumulants in Fault Diagnosis
AUTHORS:
Wenbing Wu
KEYWORDS:
Cumulants, Coupling, Wavelet, Fault Diagnosis
JOURNAL NAME:
International Journal of Modern Nonlinear Theory and Application,
Vol.7 No.4,
December
24,
2018
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.