Modeling and Simulation of Transverse Free Vibration Analysis of a Rectangular Plate with Cutouts Using Energy Principles

Table 3

The first six natural frequencies (Hz) for different square opening sizes.

Cutout size	Methods	Mode number
		1	2	3	4	5	6
	Present	6.7	13.8	13.8	20.4	24.8	24.9
	Present	6.8	13.8	13.8	20.2	24.5	25.0
	ANSYS	6.8	13.8	13.8	20.2	24.5	25.0
	Present	6.9	13.4	13.4	19.7	24.0	26.7
	Present	7.7	12.6	12.6	19.0	23.0	29.8
	Present	9.3	12.6	12.6	18.9	21.0	28.5
	ANSYS	9.3	12.4	12.4	18.7	20.1	28.1
	Present	12.3	14.5	14.6	20.1	20.5	27.9