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Comparative analysis of the natural frequencies for the SNL 61.5m blade.
| Model | Natural Frequency (Hz) | |||||
|---|---|---|---|---|---|---|
| 1st Flapwise |
1st Edgewise | 2nd Flapwise |
2nd Edgewise |
3rd Flapwise |
1st Torsion |
|
| Present | 0.8415 | 0.9930 | 2.7269 | 3.5918 | 5.7255 | 6.7280 |
| Ref. [25] | 0.87 | 1.06 | 2.68 | 3.91 | 5.57 | 6.45 |
| Ref. [36] | 0.90 | - | 2.85 | - | 6.41 | 6.65 |
| Ref. [37] | 0.9194 | 1.0552 | 2.8106 | 3.8870 | 5.6904 | 6.7152 |
| Ref. [38] | 0.84 | 0.969 | 2.41 | - | - | - |
