Study on Vibrational Power Flow Propagation Characteristics in a Laminated Composite Cylindrical Shell Filled with Fluid

Table 2

Comparison of frequency for a C-C cylindrical shell (L=20 m, R=1 m, and h=0.01 m).

Frequency (HZ)
Order	Modal vector (m, n)	FEM/BEM(2000)	FEM/BEM(2800)	Reference [19]	present
1	1,2	4.91	4.89	4.93	4.92
2	1,3	9.13	9.00	8.94	8.91
3	2,3	10.8	10.64	10.64	10.61
4	2,2	11.19	11.12	11.48	11.18
5	3,3	14.79	14.55	14.66	14.32
6	1,4	18.99	18.55	18.26	18.37
7	2,4	19.46	19.00	18.73	19.22
8	3,4	20.7	20.21	19.96	20.18