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

Table 4

Natural frequencies for three edges pinned and one edge free plate (S-S-S-F).

Mode Number	Natural Frequencies (Hz)
	Exact Value [13]	DCM Method
1	37.04	37.04
2	117.89	117.89
3	129.29	129.29
4	219.89	219.89
5	250.88	250.88