模态

频率(结构钢)

频率(灰铸铁)

1

17,953

13,997

2

20,472

15,846

3

21,939

16,970

4

24,682

19,036

5

27,771

21,628

6

27,846

21,689

7

38,063

29,614

8

38,653

30,081

9

44,561

34,750

10

44,586

34,769