Free Vibration of Rectangular Plates with Porosity Distributions under Complex Boundary Constraints

Table 4

Comparison of frequency parameters Ω of porous rectangular plates subjected to different boundary conditions.

h/a	Mode no.	SCSC		SFSF		SSSS
		Present	Ref. [45]	Present	Ref. [45]	Present	Ref. [45]
0.1	1	0.0384	0.0384	0.0279	0.0279	0.0349	0.0348
	2	0.0650	0.0650	0.0339	0.0339	0.0551	0.0551
	3	0.1037	0.1037	0.0507	0.0507	0.0880	0.0880
	4	0.1150	0.1150	0.0777	0.0777	0.1136	0.1136
0.2	1	0.1434	0.1435	0.1069	0.1069	0.1323	0.1323
	2	0.2321	0.2326	0.1285	0.1287	0.2038	0.2039
	3	0.3531	0.3545	0.1871	0.1876	0.3137	0.3137
	4	0.3977	0.3980	0.2770	0.2781	0.3945	0.3946