A Semianalytical Three-Dimensional Elasticity Solution for Vibrations of Orthotropic Plates with Arbitrary Boundary Conditions

Table 9

First eight frequency parameters Ω of an orthotropic plate with different boundary conditions (h/a = 0.6).

Mode number	Boundary conditions
	CCCC	SSSS	CFCF	SFSF	E1E1E1E1	E2E2E2E2	E3E3E3E3	E4E4E4E4
1	1.05986	0.89741	0.68020	0.55575	0.34079	0.33975	0.33217	0.32414
2	1.60031	0.96645	0.76402	0.72993	0.99500	0.89388	0.73078	0.33626
3	1.63388	0.96645	0.89309	0.76929	1.05329	1.05285	0.76442	0.33647
4	1.70799	1.29724	1.25588	0.96651	1.30164	1.36600	1.12105	0.44272
5	2.04465	1.53683	1.33820	1.21143	1.32986	1.42322	1.40388	0.44290
6	2.15175	1.58501	1.49164	1.25628	1.57023	1.51977	1.57675	0.47822
7	2.15786	1.63841	1.52677	1.25813	1.63941	1.63627	1.61920	0.85949
8	2.27251	1.88870	1.71551	1.31246	1.70046	1.66079	1.66279	1.03227