Determination of the impact force by the inverse analysis using acoustic response : The transfer function is obtained by FEM

Abstract

The radiated sound from the impacted body must have the information with respect to the impact force. We have proposed the method in order to identify the impact force by analyzing the radiated sound from the impacted body. This sound is measured by the microphone and the impact force can be given by the inverse analysis using FFT. In this paper, the transform function between the impacted force and sound pressure will be obtained by the FEM simulation. Thus, the impact force can be obtained one time measurement of the impacted sound without any experiment for the calibration.