The Effect of Perforation on the Dynamics of a Flexible Panel

Table 3

Parameters of the perforated panel with fixed number of holes and different hole diameter and perforation ratio.

Name	Number of holes	Diameter; (mm)	Perforation ratio (%)
P40-10-5	40	10	5
P40-14-10	40	14	10
P40-15-12	40	15	12
P40-20-21	40	20	21