Title :
The application of modal analysis in fault diagnosis of AC motor
Author :
Ma, Hongzhong ; Zhang, Limin ; Li, Huamin ; Xie, Weifang
Author_Institution :
Dept. of Electr. Eng., Hohai Univ., Nanjing
Abstract :
Vibration is a basic phenomenon of AC motor. The vibration characteristics will change when a fault occurs to motor. Experiment Modal Analysis and Finite Element Modal Analysis are both effective methods for motor vibration analysis. This paper introduces these two methods, and proposes a new conjoint method of motor fault diagnosis based on vibration situation of motor. Through establishing motor vibration situation library and comparing practical vibration situation with it, the corresponding type of motor faults can be estimated.
Keywords :
AC motors; fault diagnosis; finite element analysis; modal analysis; vibration measurement; AC motor; experemental modal analysis; fault diagnosis; finite element modal analysis; vibration characteristics; AC motors; Condition monitoring; Damping; Data mining; Equations; Fault diagnosis; Finite element methods; Frequency; Modal analysis; Symmetric matrices; AC motor; experiment modal analysis; fault diagnosis; finite element;
Conference_Titel :
Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-1621-9
Electronic_ISBN :
978-1-4244-1622-6
DOI :
10.1109/CMD.2008.4580266
