Research Article
Differential Evolution: An Inverse Approach for Crack Detection
Table 2
Measured natural frequencies for single crack cantilever beam.
| Sl. No. | Crack | Bending frequencies (Hz) | Location (mm) | Depth (mm) | f
1 | f
2 | f
3 |
| 1 | No crack | 0.0 | 7.0683 | 44.2951 | 124.0278 | 2 | 300 | 1.2 | 7.0589 | 44.2267 | 123.8194 | 3 | 300 | 1.8 | 7.0466 | 44.1380 | 123.5518 | 4 | 300 | 2.4 | 7.0265 | 43.9916 | 123.1154 | 5 | 450 | 1.2 | 7.0654 | 44.2564 | 123.9431 | 6 | 450 | 1.8 | 7.0617 | 44.0162 | 123.8339 | 7 | 450 | 2.4 | 7.0556 | 43.7567 | 123.6551 | 8 | 600 | 1.2 | 7.0678 | 44.2532 | 123.6751 | 9 | 600 | 1.8 | 7.0673 | 44.1985 | 123.2185 | 10 | 600 | 2.4 | 7.0665 | 44.1068 | 122.4656 |
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