TY - JOUR
T1 - Application of complex three-order cumulants to fault diagnosis of hydraulic valve
AU - Wu, Wenbing
AU - Yang, Shuqun
AU - Zhou, Taogeng
PY - 2013/7
Y1 - 2013/7
N2 - In order to improve the correction rate of fault diagnosis, one method of mechanical fault diagnosis based on complex three-order cumulants was proposed. The complex forms with different definitions of three-order cumulants included different coupling information of signals, which was used to diagnose fault. In the experiment on the fault diagnosis of overflow valve, using the different coupling information, the features of fault signals and normal signals were extracted by 2-D wavelet in different directions, and then they were input into support vector machine to diagnose the fault. The experiment results show that this method can improve the correction rate of diagnosis. Furthermore, the same experiment was performed on the real three-order cumulants, and the results verify the effectiveness of the method proposed in this paper.
AB - In order to improve the correction rate of fault diagnosis, one method of mechanical fault diagnosis based on complex three-order cumulants was proposed. The complex forms with different definitions of three-order cumulants included different coupling information of signals, which was used to diagnose fault. In the experiment on the fault diagnosis of overflow valve, using the different coupling information, the features of fault signals and normal signals were extracted by 2-D wavelet in different directions, and then they were input into support vector machine to diagnose the fault. The experiment results show that this method can improve the correction rate of diagnosis. Furthermore, the same experiment was performed on the real three-order cumulants, and the results verify the effectiveness of the method proposed in this paper.
KW - Coupling
KW - Fault diagnosis
KW - Overflow valve
KW - Three-order cumulants
UR - http://www.scopus.com/inward/record.url?scp=84883475905&partnerID=8YFLogxK
U2 - 10.11784/tdxb20130704
DO - 10.11784/tdxb20130704
M3 - Article
AN - SCOPUS:84883475905
SN - 0493-2137
VL - 46
SP - 590
EP - 595
JO - Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology
JF - Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology
IS - 7
ER -