Fault Diagnosis of Bearings with Adjusted Vibration Spectrum Images
Joint Authors
Wei, Li
Qiu, Mingquan
Zhu, Zhencai
Zhou, Gongbo
Jiang, Fan
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-02
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
In order to diagnose bearing faults under different operating state and limited sample condition, a fault diagnosis method based on adjusted spectrum image of vibration signal is proposed in this paper.
Firstly, the Davies–Bouldin index (DBI) is employed to select a proper capture focus (CF) and image size, and the spectrum of vibration signal is computed via fast Fourier transformation (FFT) and adjusted according to the average rotating speed.
Then, the spectrum is plotted and captured as a two-dimensional (2D) image with the optimized CF and image size.
Two-dimensional principal component analysis (2DPCA) is used to reduce the dimension of images, and finally a nearest neighbour method is applied to classify the faults of bearings.
Two experiments are carried out to validate the effectiveness of the proposed method.
Besides, a further investigation on the effect of spectrum frequency resolution is conducted and a recommended selection method of frequency resolution is given based on the experimental performances.
In our method, the training samples could be from only one operating condition, while the testing samples are from all possible operation conditions.
All experiment results have demonstrated that the proposed method could achieve high classification accuracy even with very limited training samples.
American Psychological Association (APA)
Qiu, Mingquan& Wei, Li& Zhu, Zhencai& Jiang, Fan& Zhou, Gongbo. 2018. Fault Diagnosis of Bearings with Adjusted Vibration Spectrum Images. Shock and Vibration،Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215408
Modern Language Association (MLA)
Qiu, Mingquan…[et al.]. Fault Diagnosis of Bearings with Adjusted Vibration Spectrum Images. Shock and Vibration No. 2018 (2018), pp.1-17.
https://search.emarefa.net/detail/BIM-1215408
American Medical Association (AMA)
Qiu, Mingquan& Wei, Li& Zhu, Zhencai& Jiang, Fan& Zhou, Gongbo. Fault Diagnosis of Bearings with Adjusted Vibration Spectrum Images. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215408
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215408