바닥충격 완충재의 소음저감 성능에 관한 실험적 연구 = An Experimental Study on the Noise Isolation Performances of a Floor Impact Isolation Pad

다국어 초록 (Multilingual Abstract)

In this study, the dynamic properties of a floor impact sound isolation pad expressed in terms of the natural frequency, the dynamic stiffness per unit area and the loss factor are measured by the resonant method. By using the measured dynamic properties, the vibration transmissibility diagram is obtained for each isolation pad, which is compared with the values tested by the impact sound sources at the room in an apartment. From the comparative results, it is found that the noise reduction performances of isolation pads are closely connected with the natural frequency and the dynamic stiffness per unit area.