Study on the Influence of the Internal Elastic Constraint Stiffness on the Vib-Acoustic Performance of a Coupled Plate-Cylindrical Shell System

Table 2

Natural frequencies for a cylindrical shell with the clamped-elastic condition.

Modal orders
1	Dai [24]	131.99	183.01	298.01	315.07	315.15	315.15
	Present solution	131.49	182.88	298.45	314.88	315.48	315.48
2	Dai [24]	249.82	278.17	310.07	339.86	343.43	343.43
	Present solution	248.97	277.68	309.55	340.31	345.52	345.52
3	Dai [24]	262.81	279.76	364.98	473.26	491.36	491.36
	Present solution	262.82	279.79	365.56	476.62	490.28	490.28
4	Dai [24]	377.00	404.12	490.35	491.64	501.06	501.08
	Present solution	375.67	403.13	488.90	490.14	506.01	506.01