裂纹向右偏移距离/mm | 第一阶/Hz | 第二阶/Hz | B |
−5 | 300.0 | 1918.0 | 2.52 |
−4 | 302.6 | 1929.5 | 1.95 |
−3 | 303.6 | 1936.1 | 1.59 |
−2 | 304.9 | 1940.8 | 1.39 |
−1 | 306.2 | 1943.6 | 1.31 |
0 | 307.2 | 1945.0 | 1.29 |
1 | 308.4 | 1945.8 | 1.34 |
2 | 309.7 | 1946.0 | 1.43 |
3 | 310.6 | 1945.3 | 1.59 |
4 | 311.4 | 1944.1 | 1.78 |
5 | 312.7 | 1943.9 | 1.98 |
10 | 317.2 | 1939.1 | 3.53 |
15 | 321.5 | 1938.5 | 5.48 |
20 | 325.6 | 1941.4 | 7.79 |
30 | 332.2 | 1949.1 | 16.11 |
40 | 337.0 | 1960.6 | 37.20 |