Journal
JOURNAL OF SOUND AND VIBRATION
Volume 344, Issue -, Pages 447-463Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2015.01.014
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Funding
- National Natural Science Foundation of China [51305392]
- Fundamental Research Funds for the Central Universities
- Science and Technology Major Projects of Zhejiang province [2012C01021-2]
- China Postdoctoral Science Foundation [2013M540489]
- Zhejiang Postdoctoral Science Foundation [BSH1302041]
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Rolling element bearings are at the heart of most rotating machines and they bear the function of connectivity between the rotor and stator. It is important to distinguish the incipient fault before the bearing step into serious failure. The Slip Matrix (SM) construction method based on Singular Value Decomposition (SVD) is proposed in this paper. The SM based fault feature extraction and impulses intelligent detection methods are introduced as the key steps for rolling bearing fault diagnosis. The numerical simulation of rolling bearing fault signal is adopted which shows that the proposed method is good at fault impulses detection in strong background noise environment. The rolling element bearing accelerated life Lest is performed for the acquisition of experimental data of rolling bearing fault. With the rolling bearing running from normal stare to failure, the initial fault signal parr can be picked our from the whole life vibration data of the rolling bearing. The vibration signal is close to the nature fault signal which is acquired from a rolling bearing applied in industrial field. The analysis result shows that the proposed method has an excellent performance in rolling bearing fault. detection. (C) 2015 Elsevier Ltd. All rights reserved.
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