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Effective band-selection algorithm for rolling element bearing diagnosis using AE sensor data under noisy conditions

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Abstract

When diagnosing a rolling element bearing (REB), it is important to select the frequency band that has the most defect information. Many band-selection methods have been developed in recent years. Most existing methods target the vibration signal; hence, these methods are often unsuitable for use with acoustic emission (AE) sensors. With existing methods, the large sampling rate and high sensitivity of AE sensor causes huge computing costs and susceptibility to noise. To realize sensitive diagnosis with AE sensors, it is necessary to develop a proper band selection algorithm that operates under noisy conditions and with low computing cost. Thus, this paper proposes a segment-based fault information assisted band selection method for AE sensor data. The proposed method is validated by applying it to both simulated and experimental data. The test data contain random impulsive and non-Gaussian noises to represent the signal from other components and electrical noise from the motor system, respectively. With traditional methods, these noises either interrupt the proper band selection or increase the computing cost; however, the proposed method handles these noises and provides proper band selection with moderate computing cost.

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Acknowledgements

This research was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea Government (MSIT) (Nos. 2021R1A4A2001824 and 2021R1F1A1064460).

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Contributions

As the first author, S. J. Kim wrote the manuscript and analyzed the data. B. D. Youn and T. Kim supervised the research. They are responsible for this paper as co-corresponding authors. S. Kim and S. Lee assisted in the experiment and data gathering

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Correspondence to Byeng D. Youn.

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The authors declare that they have no conflict of interest.

Replication of results

A MATLAB code for the proposed idea outlined in Sect. 3 is provided in supplementary materials. In addition, the simulated signal in Sect. 4 is attached for reproducing the manuscript examples.

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Responsible Editor: Zhen Hu

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Topical Collection: Advanced Optimization Enabling Digital Twin Technology.

Guest Editors: Chao Hu, Vicente A. González, Taejin Kim, Omer San, Zhen Hu.

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Supplementary file 1 (MAT 16971 kb)

Supplementary file 2 (M 6 kb)

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Kim, S.J., Kim, S., Lee, S. et al. Effective band-selection algorithm for rolling element bearing diagnosis using AE sensor data under noisy conditions. Struct Multidisc Optim 65, 275 (2022). https://doi.org/10.1007/s00158-022-03360-4

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  • DOI: https://doi.org/10.1007/s00158-022-03360-4

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