The Effect of Perforation on the Dynamics of a Flexible Panel

Table 5

Parameters of the perforated panel with different hole arrays.

Name	Number of holes	Diameter; (mm)	Perforation ratio (%)
P40-14-10	40	14	10
P41-14-10-tria	40	14	10
P40-20-21	40	20	21
P41-20-21-tria	40	20	21