Research Article
Mode Selection Model for Rail Crack Detection Based on Ultrasonic Guided Waves
Table 8
Nondispersion characteristics W3.
| Frequency (Hz) | Mode no. | W3 |
| 60000 | 7 | 1 | 60000 | 8 | 0.93 | 50000 | 7 | 0.72 | 50000 | 8 | 0.70 | 60000 | 9 | 0.61 | 40000 | 7 | 0.59 | 60000 | 10 | 0.57 | 60000 | 11 | 0.57 | 60000 | 3 | 0.54 | 50000 | 9 | 0.53 | 60,000 | 4 | 0.53 | 50,000 | 11 | 0.52 | 60,000 | 1 | 0.52 | 60,000 | 2 | 0.51 | 60,000 | 22 | 0.51 | 40,000 | 8 | 0.50 | 60,000 | 6 | 0.50 | 40,000 | 9 | 0.50 | 50,000 | 3 | 0.49 | 50,000 | 4 | 0.47 |
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