Free Vibration Analysis for Shells of Revolution Using an Exact Dynamic Stiffness Method

Table 6

Natural frequencies of a spherical shell cap ().

1		2		3
Present	Ref. [27]	Present	Ref. [27]	Present	Ref. [27]
1	0.5374	0.5385	0.8582	0.8580	0.9001	0.9010
2	0.8468	0.8472	0.9172	0.9191	0.9320	0.9324
3	0.9136	0.9141	0.9384	0.9269	0.9488	0.9547
4	0.9372	0.9366	0.9529	0.9577	0.9653	0.9719