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http://dx.doi.org/10.5050/KSNVN.2008.18.8.886

Correlation Between Dynamic Stiffness of Resilient Materials and Lightweight Floor Impact Sound Reduction Level  

Kim, Kyoung-Woo (한양대학교 대학원 건축공학과)
Jeong, Gab-Cheol ((주)비아엔지니어링)
Sohn, Jang-Yeul (한양대학교 건축대학 건축공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.8, 2008 , pp. 886-895 More about this Journal
Abstract
Resilient materials are generally used for the floating floors to reduce the floor impact sound. Dynamic stiffness of resilient material have a close relation with the floor impact sound reduction. In this study, to examine the relationship between dynamic stiffness and lightweight impact sound level, the dynamic stiffness and floor impact sound level of 51 resilient materials were measured. The impact sound level of each of these resilient materials, whose dynamic stiffness was measured, was measured before and after installation, and the level difference (${\Delta}L$) was analyzed. The result of test showed that the dynamic stiffness of resilient materials decreased, the lightweight impact sound level also decreased, and there was a correlation between the dynamic stiffness and the lightweight impact sound, especially in the low frequency domain.
Keywords
Dynamic Stiffness; Resilient Material; Lightweight Impact Sound;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, K. W., Jeong, G. C. and Sohn, J. Y., "Evaluation of the Dynamic Stiffness and Heavy-weight Floor Impact Sound Reduction by Composition of Resilient Materials", Transactions of the Korean Society for Noise and Vibration of Engineering, Vol. 18, No. 2, pp. 247-254   과학기술학회마을   DOI   ScienceOn
2 Cremer, L., Heckel, M. and Petersson, B. A. T., 2005, "Structure-borne Sound", Springer-Verlag Berlin
3 Alessandro, S., Andrea, P. B. and Francesco, R., "Dynamic Stiffness Measurement an Empirical Model to Estimate the Reduction in Impact Sound Pressure Level and Its Relative Improvement Curve", ICA 2004 ; 3401-3404
4 International Organization for Standardization, 1989, ISO 9052-1 Acoustics - Determination of Dynamic Stiffness-Part 1: Materials used Under Floating Floors in Dwellings
5 Korean Standard, 2003, KS F 2868 Determination of Dynamic Stiffness of Materials used Under Floating Floors in Dwellings
6 Lee, J. W., Jeong, G. C. and Kwon, Y. P., 2003, "Correlation between Dynamic Characteristics of Isolation Material and Impact Noise Reduction of Light-weight Impact Source", Proceedings of the KSNVE Annual Spring Conference, pp. 191-195
7 Ministry of Construction and Transportation Notification No. 2006-435, "Apartment Housing Floor Impact Sound Insulation Structure Confirmation and Management Standard"