抄録
The radiated sound from the impacted body must have the information with respect to the impact force and the other properties. We have proposed the method in order to identify the impact forces and the impact locations of the impacted plate by analyzing the radiated sound from the impacted plate when the impact force is applied to the several points on the plate. In the present method, the relationship between the impact force and the radiated sound pressure is calculated by using FEM analysis. And the time dependence of the impact forces, the impact locations are identified from the measured sound pressure of the many microphones by using least square method. By the actual experiments, the efficiency of the proposed method is confirmed.
