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

Table 2

Sensitivity of the fifth-order modal frequencies to panel thickness.

Panel thickness (mm)	Mass (kg)	(Hz/mm)	(Hz/mm·kg)
	3.60	29.71	8.25
	2.71	3.79	1.40
	0.32	−0.33	−1.04
	0.46	0.50	1.09
	4.84	−1.43	−0.30
	0.43	−0.25	−0.58
	1.48	0.36	0.25