固有频率(Hz) | 方案A | 增加比率 | 方案B | 增加比率 | 方案C | 增加比率 |
1阶 | 394.3 | 59.95% | 262.13 | 6.33% | 246.83 | 0.13% |
2阶 | 544.88 | 59.61% | 362.35 | 6.14% | 341.68 | 0.08% |
3阶 | 1038.6 | 60.26% | 680.85 | 5.06% | 648.69 | 0.09% |
4阶 | 1106.3 | 59.69% | 730.31 | 5.42% | 693.83 | 0.15% |
5阶 | 1231.7 | 59.03% | 774.70 | 0.02% | 774.77 | 0.03% |
6阶 | 1251.4 | 59.03% | 786.52 | -0.05% | 786.28 | −0.08% |