The selection to position visco-elastic material for reduction radiated sound power from a stiffened plate

보강판의 음향방사파워저감을 위한 제진재의 위치선정

The first purpose of this study investigates the influence of stiffening on the acoustic response of stiffened plates, which are often employed in steel structures. And the radiation efficiency is measured by average mean square velocity and sound intensity of stiffened plates. The second, it determines influence of mass, damp and stiffeness due to the partial adhesive visco-elastic material to reduce radiated sound power.