Faster Calculation of the Low-Frequency Radiated Sound Power of Underwater Slender Cylindrical Shells

Table 4

The first five natural bending frequencies of underwater cylindrical shell with different stiffener parameters.

Stiffener parameters	Order m
Height (m)	Width (m)	1 (Hz)	2 (Hz)	3 (Hz)	4 (Hz)	5 (Hz)
0.125	0.007	5.17	13.94	25.34	38.35	52.09
	0.01	5.16	13.89	25.27	38.21	51.86
0.08	0.007	5.18	13.99	25.43	38.50	52.29
Without stiffeners		5.20	13.44	25.18	37.80	51.01