Structural Modal Analysis and Optimization of SUV Door Based on Response Surface Method

Table 6

Results of computational times and relative errors at experimental runs.

No.	Thickness of door panel (mm)				Calculation time (s)		Response (Hz)		(%)
					FEM	RSM	FEM	RSM
1	0.5	1.2	0.5	0.6	25.33	0.0231	49.54	49.68	0.28
2	0.5	1.6	0.5	1.0	24.78	0.0227	51.86	51.87	0.03
3	0.7	1.4	0.6	0.8	25.12	0.0219	55.34	55.37	0.06
4	0.9	1.4	0.6	0.8	25.06	0.0223	58.04	57.99	0.09