Noise Control of a Plate Structure using Dual Dynamic Absorbers (Theoretical Design Method of Dynamic Absorbers for Reducing Noise and Its Effectiveness)

This paper proposes the theoretical design method of dynamic absorbers for controlling the noise radiation of the structure, which is expanded from “Vibration Control Method of Multi-Degree-of- Freedom Systems using Dynamic Absorbers”. The main point of this method is combined with vibration analysis (finite-element method) and sound analysis (boundary element method). We demonstrate theoretically and experimentally that this method is effective for reducing the radiation noise of the plate structure model, which is a basic element of the structure, by setting up optimum -designed four dual dynamic absorbers.