Vibrations of Plates with Complex Shape: Experimental Modal Analysis, Finite Element Method, and R-Functions Method

Table 20

Comparison of experimental, FEM, and RFM frequencies (Case 4).

Experimental (Hz)	FEM simulation (Hz)	Difference (%) (exp-FEM)	RFM (Hz)	Difference (% ) (exp-RFM)
287,82	258,57	10,16	270.96	5.86%
509,47	597,43	−17,27	555.64	−9.06%
598,59	606,73	−1,36	618.72	−3.36%
730,24	862,25	−18,08	805.71	−10.33%
1060,18	1149,54	−8,43	1135.85	−7.14%
1455,78	1547,42	−6,29	1580.06	−8.54%
1548,43	1678,08	−8,37	1673.14	−8.05%
1651,66	1783,58	−7,99	1736.54	−5.14%