Experimental application of Pseudo-Equivalent Deterministic Excitation method through an impact test

The prediction of the vibrational response of a structure subjected to an aerodynamic load is fundamental for assessing preliminary structural design and addressing typical structural problems such as fatigue and structure-borne sound. In literature, there are already alternative experimental methods capable of reproducing the response to a TBL excitation without using wind tunnel facilities. One of them is the eXperimental Pseudo-Equivalent Deterministic Excitation method (X-PEDEM). The method has only been numerically validated; therefore, with the present work, it is wanted to experimentally test X-PEDEM by conducting a hammer impact test on three different panels, for different boundary conditions and for different asymptotic flow velocities. X-PEDEM demonstrates that is able to reproduce, in an approximate manner, the reference solutions for all aforementioned cases, ensuring an optimal accuracy for frequencies far from the convective coincidence frequency.