Degradation State Identification of Cracked Ultrasonic Motor by Means of Fault Feature Extraction Method

The cracking of piezoelectric ceramics is the main reason of failure of an ultrasonic motor. Since the fault information is too weak to reflect the condition of piezoelectric ceramics especially in the early degradation stage, a fault feature extraction method based on multiscale morphological spect...

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Bibliographic Details
Main Authors: Guoqing An, Hongru Li
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2019/5180590
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