FU Qiang,HU Dong,YANG Tongliang,et al. Bearing fault diagnosis method based on improved compressed sensing and deep multi-kernel extreme learning machine[J]. Journal of Mechanical Strength,2025,47(6):48-56.
FU Qiang,HU Dong,YANG Tongliang,et al. Bearing fault diagnosis method based on improved compressed sensing and deep multi-kernel extreme learning machine[J]. Journal of Mechanical Strength,2025,47(6):48-56. DOI: DOI:10.16579/j.issn.1001.9669.2025.06.006.
Bearing fault diagnosis method based on improved compressed sensing and deep multi-kernel extreme learning machine
In response to challenges such as large sampling data
extended diagnosis time
and subjective fault feature selection in traditional bearing fault diagnosis
based on compressed sensing (CS) and deep multi-kernel extreme learning machine (D-MKELM) theory
a CS-DMKELM intelligent diagnosis model for rolling bearings was proposed. Firstly
sparse signals were obtained through threshold processing of transformed domain signals. A Gaussian random matrix was employed as the measurement matrix to compress the processed data. Secongly
the compressed data was used as the input signal for the D-MKELM. Particle swarm optimization (PSO) algorithm was applied to optimize critical parameters
enabling intelligent fault diagnosis. Results demonstrate that the proposed method
using only a small amount of bearing diagnostic data
automatically extracts feature information of bearings from a limited number of measurement signals through the D-MKELM. The proposed method enables rapid fault diagnosis of bearings. With a diagnostic time of 0.55 s
a final recognition accuracy of 99.29% was achieved. The proposed method reduces the diagnostic time and exhibits the high diagnostic accuracy
providing a new approach for handling massive bearing data in the fault diagnosis.
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