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

Table 2

Influence of ellipse shape on the first two frequencies of clamped-free plate.

a (mm)	b (mm)	Natural frequency (Hz)
		f1	f2
50	100	8.2109	27.831
55.6	90	8.3417	27.765
62.5	80	8.4665	27.709
71.4	70	8.5948	27.666
83.3	60	8.7387	27.647
100	50	8.8815	27.399
125	40	9.2156	27.718