TY - GEN
T1 - Blind Deconvolution Based on Modified Smoothness Index for Railway Axle Bearing Fault Diagnosis
AU - Chen, Bingyan
AU - Gu, Fengshou
AU - Zhang, Weihua
AU - Tan, Mengying
AU - Luo, Yaping
AU - Wang, Zuolu
AU - Zhou, Zewen
N1 - Funding Information:
Acknowledgements. This work was supported by the National Key Research and Development Pro-gram of China (Grant No. 2021YFB3400704-02), the open project of State Key Laboratory of Traction Power, Southwest Jiaotong University, China (Grant No. TPL2210) and the China Scholarship Council (Grant No. 202107000033). The authors would like to thank Geoff L. McDonald for sharing the code of MED and Marco Buzzoni for sharing the code of CYCBD.
Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2023/3/4
Y1 - 2023/3/4
N2 - Blind deconvolution is a widely used technique for fault diagnosis of rolling bearings. Traditional blind deconvolution methods, such as minimum entropy deconvolution, are susceptible to random transients, making it difficult to extract fault features of railway train axle bearings under strong external shock conditions. Deconvolution methods that take the fault characteristic frequency of interest as an input parameter, such as maximum second-order cyclostationarity blind deconvolution, can alleviate this deficiency, however, the bearing fault features are difficult to be extracted when the specified characteristic frequency deviates from the actual value greatly. To overcome these problems, the modified smoothness index of the squared envelope and the modified smoothness index of the squared envelope spectrum are proposed as objective functions of the deconvolution algorithms, allowing two new blind deconvolution methods to be developed for railway axle bearing faults diagnosis. The two proposed blind deconvolution methods are robust to random transients and do not require the characteristic frequency of interest as an input parameter. The fault diagnosis performance of the two proposed methods is verified using the experimental data of actual railway axle bearings and compared with the state-of-the-art deconvolution methods. The results show that the two proposed blind deconvolution methods can adaptively extract repetitive transient features from noisy vibration signals and effectively diagnose different faults of railway axle bearings.
AB - Blind deconvolution is a widely used technique for fault diagnosis of rolling bearings. Traditional blind deconvolution methods, such as minimum entropy deconvolution, are susceptible to random transients, making it difficult to extract fault features of railway train axle bearings under strong external shock conditions. Deconvolution methods that take the fault characteristic frequency of interest as an input parameter, such as maximum second-order cyclostationarity blind deconvolution, can alleviate this deficiency, however, the bearing fault features are difficult to be extracted when the specified characteristic frequency deviates from the actual value greatly. To overcome these problems, the modified smoothness index of the squared envelope and the modified smoothness index of the squared envelope spectrum are proposed as objective functions of the deconvolution algorithms, allowing two new blind deconvolution methods to be developed for railway axle bearing faults diagnosis. The two proposed blind deconvolution methods are robust to random transients and do not require the characteristic frequency of interest as an input parameter. The fault diagnosis performance of the two proposed methods is verified using the experimental data of actual railway axle bearings and compared with the state-of-the-art deconvolution methods. The results show that the two proposed blind deconvolution methods can adaptively extract repetitive transient features from noisy vibration signals and effectively diagnose different faults of railway axle bearings.
KW - Blind deconvolution
KW - Fault diagnosis
KW - Impulse extraction
KW - Modified smoothness index
KW - Railway axle bearing
UR - http://www.scopus.com/inward/record.url?scp=85151160326&partnerID=8YFLogxK
UR - https://link.springer.com/book/10.1007/978-3-031-26193-0
U2 - 10.1007/978-3-031-26193-0_38
DO - 10.1007/978-3-031-26193-0_38
M3 - Conference contribution
AN - SCOPUS:85151160326
SN - 9783031261923
SN - 9783031261954
VL - 129
T3 - Mechanisms and Machine Science
SP - 447
EP - 457
BT - Proceedings of TEPEN 2022
A2 - Zhang, Hao
A2 - Ji, Yongjian
A2 - Liu, Tongtong
A2 - Sun, Xiuquan
A2 - Ball, Andrew David
PB - Springer, Cham
T2 - International Conference of The Efficiency and Performance Engineering Network 2022
Y2 - 18 August 2022 through 21 August 2022
ER -