Acta Metrologica Sinica  2019, Vol. 40 Issue (6): 1083-1087    DOI: 10.3969/j.issn.1000-1158.2019.06.23
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Fault Diagnosis of Rolling Bearing Using Mahalanobis-Taguchi System Based on IVMD
CHEN Jian1,2,ZHUANG Xue-kai1,LV Wu-yang1,TAO Shan-yong1,WANG Wei1
1. Institute of Sound and Vibration Research, Hefei University of Technology, Hefei, Anhui 230009, China
2. Automotive NVH Engineering & Technology Research Center Anhui Province, Hefei, Anhui 230009, China
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Abstract  Aiming at the sensitivity and reliability of the single characteristic parameters of rolling bearing operation signal to early faults, a rolling bearing fault diagnosis method based on IVMD and Mahalanobis-Taguchi system was proposed. The method firstly determined the number of layers of the variational modal decomposition based on the spectrum correlation coefficient; and secondly, the modified variational mode decomposition was used to decompose the mechanical vibration signal to obtain a series of band-limited intrinsic mode functions, and calculated the characteristic statistical components of each modal component. Then, the base space of the MTS system on this basis was built. The SNR method was used to screen effective feature variables, and the benchmark space of MTS system was rebuilt. Finally, the Mahalanobis distance from the diagnostic signal to the reference space was calculated to detect the initial fault, and the diagnostic control index of the early fault of the rolling bearing was established.
Key wordsmetrology      IVMD      rolling bearings      mahalanobis-taguchi system      fault diagnosis     
Received: 23 November 2018      Published: 10 October 2019
PACS:  TB936  
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CHEN Jian
ZHUANG Xue-kai
LV Wu-yang
TAO Shan-yong
WANG Wei
Cite this article:   
CHEN Jian,ZHUANG Xue-kai,LV Wu-yang, et al. Fault Diagnosis of Rolling Bearing Using Mahalanobis-Taguchi System Based on IVMD[J]. Acta Metrologica Sinica, 2019, 40(6): 1083-1087.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.06.23     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I6/1083
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