井架模态阶数 | 井架模态频率/Hz | 对应转盘转速/(r∙min−1) |
1 | 1.49 | 89.4 |
2 | 1.51 | 90.6 |
3 | 3.43 | 205.8 |
4 | 4.43 | 260.4 |
5 | 7.69 | 461.4 |
6 | 8.10 | 486.0 |