An Improved Denoising Method for Fault Vibration Signals of Wind Turbine Gearbox Bearings
Abstract
:1. Introduction
2. EWTKC-SVD Denoising Method Basic Theoretical Framework
2.1. [Empirical Wavelet Transform] Kurtosis, Correlation Coefficient (EWTKC)
2.2. Singular Value Decomposition (SVD)
2.3. Denoising Method Flow
3. Simulation Analysis
3.1. Simulation and Construction
3.2. EWT Performance Analysis
3.3. EWT-SVD Performance Analysis
4. Experimental Results
4.1. Experimental Platform
4.2. Denoising Experiment Results
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Index | Frequency (Hz) |
---|---|
FM Signal Base Frequency | 50 |
AM Signal Frequency | 163 |
Sinusoidal Frequency | 15 |
Methods | SNR (dB) |
---|---|
EWT-SVD | 6.9030 |
EWT | 5.1768 |
EMD | −2.0531 |
CEEMD | 2.378 |
EEMD | −1.6492 |
CEEMDAN | 3.173 |
Methods | SNR (dB) |
---|---|
EWT | 4.1369 |
EMD | −2.4823 |
CEEMD | 1.5711 |
EEMD | 0.8316 |
CEEMDAN | 2.9715 |
EWT-SVD | 6.0691 |
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Zhang, C.; Zhang, X.; Xu, Z.; Dai, W.; Lu, J. An Improved Denoising Method for Fault Vibration Signals of Wind Turbine Gearbox Bearings. Machines 2023, 11, 1004. https://doi.org/10.3390/machines11111004
Zhang C, Zhang X, Xu Z, Dai W, Lu J. An Improved Denoising Method for Fault Vibration Signals of Wind Turbine Gearbox Bearings. Machines. 2023; 11(11):1004. https://doi.org/10.3390/machines11111004
Chicago/Turabian StyleZhang, Chaohai, Xu Zhang, Zufeng Xu, Wei Dai, and Jie Lu. 2023. "An Improved Denoising Method for Fault Vibration Signals of Wind Turbine Gearbox Bearings" Machines 11, no. 11: 1004. https://doi.org/10.3390/machines11111004