Vibration Characteristics of Ring-Stiffened Functionally Graded Circular Cylindrical Shells

Table 1

Comparison of frequency parameters Ω=𝜔𝑅(1−𝜈²)𝜌/𝐸 simply supported isotropic cylindrical shell. (𝑚=1,𝐿/𝑅=20,ℎ/𝑅=0.01,𝐸=30𝑒+06𝑙𝑏𝑓𝑖𝑛⁻²,𝜈=0.3,𝜌=7.35𝑒⁻⁰⁴𝑙𝑏𝑓𝑠²).

𝑛	Loy et al. [15]	Present
1	0.016102	0.016101
2	0.009387	0.009381
3	0.022108	0.022105
4	0.042096	0.042095
5	0.068008	0.068008
6	0.099730	0.099730
7	0.137239	0.137240
8	0.180527	0.180529
9	0.229594	0.229596
10	0.284435	0.284439