A Gradient Stable Node-Based Smoothed Discrete Shear Gap Method for Analysis of Reissner–Mindlin Plates

Table 8

First 12 parameterized natural frequencies of the elliptical plate with 446 nodes.

Modes	FEM-DSG	NS-FEM	NS-DSG	GS-DSG	Reference
1	6.6093	6.3951	6.463	6.4857	6.3595
2	11.938	8.587	11.513	11.572	11.369
3	19.611	9.151	18.496	18.662	18.425
4	23.984	9.579	22.042	22.388	22.203
5	29.916	10.671	27.367	27.782	27.628
6	33.244	10.903	29.873	30.402	30.158
7	43.224	11.273	38.241	39.089	39.012
8	44.833	11.661	39.064	39.934	39.874
9	54.672	13.268	45.674	47.269	47.500
10	59.026	13.963	49.719	51.119	51.421
11	59.871	15.246	50.818	52.405	52.582
12	69.465	15.655	56.690	58.618	58.565