Vibration Analysis and Optimization of a Rectangular Plate with Flanging Hyperellipse Cutout

Table 7

Optimal results of a rectangular plate with flanging cutout.

Design parameters	Model 1	Model 2	Model 3	Model 4
A0 (mm^2)
a (mm)	82.75	67.15	85.48	97.73
b (mm)	61.95	70.28	59.93	91.17
h (mm)	8.28	5.89	9.57	7.98
η	2.69	4.33	2.70	2.97
x0 (mm)	−4.05	−64.69	67.00	−67.82
y0 (mm)	6.40	11.32	−12.89	10.56
(°)	56.48	9.34	21.08	34.94