Free Vibration Analysis of Composite Conical Shells with Variable Thickness

Table 2

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

n	45°/0°/45°			45°/30°/0°/30°/45°
	KE/EGE/KE	GE/KE/GE	GE/EGE/GE	KE/EGE/GE/EGE/KE	EGE/GE/KE/GE/EGE	GE/EGE/KE/EGE/GE
1	0.400495	0.373850	0.421468	0.307091	0.304765	0.36881
2	0.654284	0.597870	0.690709	0.490737	0.476702	0.59392
3	0.560153	0.520425	0.602290	0.415691	0.408492	0.51378
4	0.443432	0.422939	0.469940	0.352047	0.341499	0.42872
5	0.431779	0.412458	0.463464	0.346254	0.325831	0.43013
6	0.497189	0.472720	0.540390	0.391703	0.361600	0.49925
7	0.600570	0.569328	0.656000	0.468217	0.429708	0.60416
8	0.725938	0.686551	0.794530	0.563476	0.516727	0.73039
9	0.867462	0.818499	0.950241	0.672017	0.616703	0.87226
10	1.022135	0.962222	1.119930	0.791223	0.727056	1.02683