频率阶数 | 谱方法(Hz) | 有限元(Hz) | 误差(%) |
1 | 22.493 | 22.475 | 0.08 |
2 | 45.877 | 45.829 | 0.10 |
3 | 45.877 | 45.829 | 0.10 |
4 | 67.643 | 67.558 | 0.13 |
5 | 82.248 | 82.135 | 0.14 |
6 | 82.638 | 82.526 | 0.14 |
7 | 103.137 | 102.971 | 0.16 |
8 | 103.137 | 102.971 | 0.16 |
9 | 131.592 | 131.363 | 0.18 |
10 | 131.592 | 131.363 | 0.18 |
11 | 137.537 | 137.282 | 0.19 |
12 | 151.364 | 151.065 | 0.20 |
13 | 151.983 | 151.683 | 0.20 |
14 | 185.232 | 184.812 | 0.23 |
15 | 185.232 | 184.812 | 0.23 |
16 | 193.087 | 192.651 | 0.23 |
17 | 193.250 | 192.814 | 0.23 |
18 | 212.888 | 212.363 | 0.25 |
19 | 212.888 | 212.363 | 0.25 |
20 | 232.118 | 231.496 | 0.27 |
21 | 245.507 | 244.821 | 0.28 |
22 | 246.217 | 245.532 | 0.28 |
23 | 267.127 | 266.365 | 0.29 |
24 | 267.127 | 266.365 | 0.29 |
25 | 286.428 | 285.544 | 0.31 |