Study on Denoising Method of Vibration Signal Induced by Tunnel Portal Blasting Based on WOA-VMD Algorithm
Abstract
:1. Introduction
2. WOA and VMD Algorithms
2.1. VMD Algorithm
2.2. WOA Algorithm
3. WOA-VMD Denoising Method
3.1. VMD Parameter Optimization
3.2. Denoising Method
3.3. Evaluation of Noise Reduction Effect
4. Engineering Applications
4.1. Vibration Signal Noise Reduction
4.2. Energy Characteristic Analysis
5. Comparison Analysis
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Signals | Original Signal (s1) | IMF1 | IMF2 | IMF3 | IMF4 | IMF5 | IMF6 | IMF7 | IMF8 |
---|---|---|---|---|---|---|---|---|---|
Center frequency/Hz | 25.41 | 3.25 | 30.68 | 77.66 | 219.31 | 966.44 | 1258.43 | 1512.42 | 1790.42 |
Vibration energy/(cm2/s2) | 110.1172 | 31.3148 | 56.5706 | 21.0999 | 0.8941 | 0.0566 | 0.0622 | 0.0572 | 0.0618 |
Energy percentage % | 100 | 28.438 | 51.373 | 19.161 | 0.812 | 0.051 | 0.056 | 0.052 | 0.056 |
IMF1 | IMF2 | IMF3 | IMF4 | IMF5 | IMF6 | IMF7 | IMF8 | |
---|---|---|---|---|---|---|---|---|
MPE | 0.4152 | 0.3774 | 0.4242 | 0.6337 | 0.7403 | 0.6990 | 0.6910 | 0.7186 |
Original Signal | Noise Reduction Algorithm | Modal Number K | Penalty Factor α | Signal to Noise Ratio s/dB | Root Mean Square Error ε |
---|---|---|---|---|---|
s1 | CEEMDAN | 10 | - | 14.021 | 0.095 |
VMD | 8 | 4800 | 18.242 | 0.057 | |
WOA-VMD | 8 | 5600 | 18.322 | 0.055 | |
s2 | CEEMDAN | 6 | - | 13.871 | 0.101 |
VMD | 6 | 4800 | 16.520 | 0.070 | |
WOA-VMD | 7 | 6100 | 18.325 | 0.061 | |
s3 | CEEMDAN | 8 | - | 10.210 | 0.125 |
VMD | 8 | 5000 | 14.525 | 0.081 | |
WOA-VMD | 10 | 6000 | 16.658 | 0.072 |
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Liu, Z.; Peng, Y. Study on Denoising Method of Vibration Signal Induced by Tunnel Portal Blasting Based on WOA-VMD Algorithm. Appl. Sci. 2023, 13, 3322. https://doi.org/10.3390/app13053322
Liu Z, Peng Y. Study on Denoising Method of Vibration Signal Induced by Tunnel Portal Blasting Based on WOA-VMD Algorithm. Applied Sciences. 2023; 13(5):3322. https://doi.org/10.3390/app13053322
Chicago/Turabian StyleLiu, Ze, and Yaxiong Peng. 2023. "Study on Denoising Method of Vibration Signal Induced by Tunnel Portal Blasting Based on WOA-VMD Algorithm" Applied Sciences 13, no. 5: 3322. https://doi.org/10.3390/app13053322
APA StyleLiu, Z., & Peng, Y. (2023). Study on Denoising Method of Vibration Signal Induced by Tunnel Portal Blasting Based on WOA-VMD Algorithm. Applied Sciences, 13(5), 3322. https://doi.org/10.3390/app13053322