Research Article
Crack Detection of Fan Blade Based on Natural Frequencies
Table 1
Natural frequencies of the plate blade in Hz.
| ā | Theoretical value | Simulation value | Relative error |
| Mode 1 | 48.629 | 49.556 | 1.9% | Mode 2 | 304.756 | 308.240 | 1.1% | Mode 3 | 853.324 | 857.320 | 0.4% |
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