Research Article
Vibration Characteristics of Roundabout Swing of HAWT Wind Wheel
Table 1
Typical second-order following vibration frequencies.
| | Blade number | (Hz) | (Hz) | (Hz) | (Hz) | (Hz) | (Hz) |
| | 1 | 9.95 | 17.10 | 23.40 | 24.90 | 72.70 | 77.20 | | 2 | 9.73 | 17.90 | 19.80 | 23.30 | 87.70 | 90.10 | | 3 | 8.00 | 15.00 | 21.60 | 24.50 | 81.80 | 87.90 |
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