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

Table 2

Natural frequencies (Hz) for the flexible plate with six cutouts.

Mode number	Methods		Error
	Present	ANSYS
1	7.9	7.8	1.2%
2	13.6	13.5	0.7%
3	14.6	14.5	0.6%
4	20.6	20.4	0.9%
5	20.9	20.5	1.9%
6	22.2	21.7	2.3%
7	27.6	26.7	3.3%
8	28.1	27.4	2.5%
9	28.7	28.1	2.1%
10	33.7	32.6	3.3%
20	68.0	67.4	0.8%
40	124.6	122.6	1.6%
80	238.9	235.7	1.3%
100	306.2	302.8	1.1%
200	602.8	601.1	0.2%