A Unified Approach of Free Vibration Analysis for Stiffened Cylindrical Shell with General Boundary Conditions

Table 6

Comparison of natural frequencies (HZ) of cylindrical shells with simply supported boundaries.

	=1			=2
	FEM	GM	present	FEM	GM	present
1	1147.0	1143.5	1145.4	1257.7	1253.3	1255.5
2	1021.0	1019.5	1020.2	1681.8	1678.6	1679.2
3	1960.5	1958.3	1959.3	2214.5	2213.6	2212.1
4	3440.5	3435.6	3438.9	3795.2	3792.9	3794.3