The Effect of Perforation on the Dynamics of a Flexible Panel

Figure 5

Examples of the Finite Element model of the perforations. Fixed hole diameter: (a) P40-10-5 and (b) P80-10-10; fixed perforation ratio: (c) P20-20-10 and (d) P40-14-10; different hole arrangement: (e) P40-20-21 and (f) P41-20-21; different hole distribution: (g) P40-14-10-edge and (h) P40-14-10-center.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)