Free Vibration Analysis of Composite Conical Shells with Variable Thickness

Table 1

Influence of circumferential node number on the fundamental frequency parameter of three- and five-layered conical shells with KE/EGE/KE and KE/EGE/GE/EGE/KE material combinations.

n	C-F		S-S
	45°/0°/45°	45°/60°/0°/60°/45°	45°/0°/45°	45°/60°/0°/60°/45°
	KE/EGE/KE	KE/EGE/GE/EGE/KE	KE/EGE/KE	KE/EGE/GE/EGE/KE
1	0.330183	0.283127	0.400495	0.336936
2	0.333685	0.309334	0.654284	0.566468
3	0.213942	0.200907	0.560153	0.454850
4	0.165313	0.156536	0.443432	0.375673
5	0.170269	0.158292	0.431779	0.372236
6	0.202314	0.185803	0.497189	0.426926
7	0.243201	0.223443	0.600570	0.514700
8	0.285948	0.264548	0.725938	0.622380
9	0.327225	0.306138	0.867462	0.744432
10	0.363870	0.345774	1.022135	0.878158