TY - GEN
T1 - Flexible Analytical Wavelet Transform Enhanced Sparse Representation with Nonconvex Penalty and Its Application to Weak Fault Feature Extraction of Rolling Bearings
AU - Cai, Keshen
AU - Zhang, Chunlin
AU - Hou, Wenbo
AU - Feng, Yadong
AU - Wan, Fangyi
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - To address the problem of early-stage weak fault feature extraction of rolling bearings, non-convex penalty enhanced sparse representation method based on flexible analytical wavelet transform is proposed. The flexible analytical wavelet transform possesses tunable time-frequency frame and atom oscillation, and optimal flexible analytical wavelet transform frame is selected to match the impulsive fault feature to be extracted. Further, sparse representation model based on generalized min-max concave penalty is established, in which the non-convex penalty could induce sparsity of the solutions and the optimization function could remain convex. Thus, the forward-backward splitting method is adopted for solving the optimization problem of sparse representation model.
AB - To address the problem of early-stage weak fault feature extraction of rolling bearings, non-convex penalty enhanced sparse representation method based on flexible analytical wavelet transform is proposed. The flexible analytical wavelet transform possesses tunable time-frequency frame and atom oscillation, and optimal flexible analytical wavelet transform frame is selected to match the impulsive fault feature to be extracted. Further, sparse representation model based on generalized min-max concave penalty is established, in which the non-convex penalty could induce sparsity of the solutions and the optimization function could remain convex. Thus, the forward-backward splitting method is adopted for solving the optimization problem of sparse representation model.
KW - flexible analytical wavelet transform
KW - non-convex penalty enhanced sparse representation
KW - rolling bearings
KW - weak fault feature extraction
UR - http://www.scopus.com/inward/record.url?scp=85184822728&partnerID=8YFLogxK
U2 - 10.1109/ICICSP59554.2023.10390854
DO - 10.1109/ICICSP59554.2023.10390854
M3 - 会议稿件
AN - SCOPUS:85184822728
T3 - 2023 6th International Conference on Information Communication and Signal Processing, ICICSP 2023
SP - 1268
EP - 1272
BT - 2023 6th International Conference on Information Communication and Signal Processing, ICICSP 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th International Conference on Information Communication and Signal Processing, ICICSP 2023
Y2 - 23 September 2023 through 25 September 2023
ER -