Prediction of Vibrational Behavior of Grid-Stiffened Cylindrical Shells

Table 1

Comparison of the natural frequencies (Hz) for a SNA-SNA steel cylindrical shell with and without stiffeners.

Number	Stiffened shell	Unstiffened shell
1	2994.6	3599.0
2	1367.3	1646.1
3	778.4	943.1
4	743.1	904.7
5	1021.1	1241.3
6	1448.8	1758.7
7	1975.6	2396.5
8	2589.4	3139.9
9	3286.8	3984.9
10	4066.9	4930.4