Free Vibration Characteristics of Moderately Thick Spherical Shell with General Boundary Conditions Based on Ritz Method

Table 3

Comparison of the results for the annular spherical shell (m = 1).

n	F–F		F–C		C–F		C–C
	Present	Qu et al. [37]	Present	Qu et al. [37]	Present	Qu et al. [37]	Present	Qu et al. [37]
0	0.86794	0.87054	0.81696	0.81661	0.40539	0.40549	0.98744	0.98710
1	0.86154	0.86412	0.60870	0.60880	0.15171	0.15170	1.02673	1.02639
2	0.05724	0.05726	0.34849	0.34857	0.07635	0.07636	1.00321	1.00292
3	0.15319	0.15323	0.65740	0.65733	0.15408	0.15412	0.99835	0.99803
4	0.27893	0.27900	0.96571	0.96537	0.27901	0.27908	1.04307	1.04274
5	0.42932	0.42940	1.11593	1.11557	0.42933	0.42941	1.12659	1.12623
6	0.60179	0.60188	1.24443	1.24402	0.60180	0.60189	1.24619	1.24578
7	0.79550	0.79559	1.40073	1.40026	0.79550	0.79559	1.40104	1.40056
8	1.01041	1.01048	1.58989	1.58934	1.01041	1.01048	1.58994	1.58939
9	1.24667	1.24672	1.81090	1.81026	1.24667	1.24672	1.81091	1.81027