A Modified Fourier–Ritz Formulation for Vibration Analysis of Arbitrarily Restrained Rectangular Plate with Cutouts

Table 6

Frequency parameters of the plate with one inner cutout.

Mode order		1	2	3	4	5	6
CFCF-FFFF	Present	451.80	806.28	851.34	937.11	1031.56	1059.58
	ANSYS	448.66	803.85	847.42	934.39	1029.41	1055.32
CCCF-FFFF	Present	613.80	830.60	914.19	1188.37	1308.05	1349.43
	ANSYS	609.35	827.98	907.89	1182.01	1299.73	1347.12
CSnStF-FFFF	Present	401.86	513.41	705.11	930.53	1065.76	1153.31
	ANSYS	400.68	509.44	704.71	921.95	1065.40	1153.22
SnSnSnSn-FFFF	Present	697.20	836.04	884.95	1130.19	1155.51	1222.97
	ANSYS	696.86	830.35	884.93	1125.6	1155.8	1219.3
StStStSt-FFFF	Present	449.99	523.70	733.39	1009.46	1046.24	1111.86
	ANSYS	441.34	523.73	733.36	1004.20	1046.51	1107.60