A Dynamic Coefficient Matrix Method for the Free Vibration of Thin Rectangular Isotropic Plates

Table 5

Natural frequencies for two opposite edges pinned and two edges free plate (S-F-S-F).

Mode Number	Natural Frequencies (Hz)
	Exact Value [13]	DCM Method
1	25.89	25.89
2	58.30	58.30
3	104.88	104.88
4	148.13	148.13
5	177.72	177.72