Evaluating the Vibrational Characteristics of Floor Impact Noise in Different Structural Elements of an Apartment House

바닥충격에 의한 공동주택의 바닥, 벽, 천장의 진동 및 소음방사특성 연구

The overall noise reduction was compared in regard to the vibrational characteristics of floor impact noise in a multi story residential building which has several noise reduction treatments. The vibration through its structural elements such as wall, floor and ceiling and sound emitting were investigated for each insulation treatment. It was found that, in case of heavy-weight impact noise, the vibration energy is emitted mostly from ceiling, but for the light-weight impact noise, most of the energy comes through ceiling and walls. (omitted)