Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.11a
- /
- Pages.942-945
- /
- 2005
- /
- 1598-2548(pISSN)
A Study on the Dynamic Properties by Loading Time of Floor Impact Noise Insulation Materials
바닥충격음 완충재의 재하시간에 따른 동적 특성 연구
- Published : 2005.11.01
Abstract
The purpose of this study is to suggest a fundamental data for change of dynamic properties according to the loading time of resilient materials. 18 kinds of resilient materials included 4 representative types were measured at the load time of 24hours and 2hours by the method of Korea standard (KS F 2868) measuring the dynamic stiffness and the loss factor of materials under floating floors. As a result, the dynamic stiffness was increased rapidly in case of expandable polystyrene and rubber materials according to the load time, especially before 2 hours. The loss factor was represented that rubber materials with high elasticity are high, and expandable polystyrene, polyester, poly ethylene materials with low elasticity are low.
Keywords