The Application of Coupled Three Order Cumulants’ Differential Feature in Fault Diagnosis
Open Access
- 1 January 2018
- journal article
- Published by Scientific Research Publishing, Inc. in International Journal of Modern Nonlinear Theory and Application
- Vol. 07 (02), 77-87
- https://doi.org/10.4236/ijmnta.2018.72006
Abstract
Complex three-order cumulant has different definition forms. Different forms conclude different information. For studying the effection of frequency in the coupled signals to fault diagnosis, the differential method to the three order cumulants of coupled signals is adopted. By using the differential of complex three order cumulants before and after respectively, then their dimensional spectrum is calculated, and the results are used to fault diagnosis. The experimental results show that, the increase frequency item in three order cumulants after differentiated impacts on the results of fault diagnosis and the degree of effection is relative to the differential times. And the correct rate of fault diagnosis can be raised by changing the differential times of three order cumulants.Keywords
This publication has 1 reference indexed in Scilit:
- Higher order cumulants and cumulant spectraPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1990