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http://dx.doi.org/10.7734/COSEIK.2015.28.6.645

Prediction of Heavy-Weight Floor Impact Sound in Multi-unit House using Finite Element Analysis  

Mun, Dae-Ho (Department of Architectural Engineering, Dankook University)
Lee, Sang-Hyun (Department of Architectural Engineering, Dankook University)
Hwang, Jae-Seung (Department of Architectural Engineering, Chonnam National Univ.)
Baek, Gil-Ok (Department of Architecture & Architectural Engineering, Seoul National Univ.)
Park, Hong-Gun (Department of Architecture & Architectural Engineering, Seoul National Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.6, 2015 , pp. 645-657 More about this Journal
Abstract
In this study floor impact noise and structure acceleration response of bare concrete slabs were predicted by using Finite Element Analysis(FEA). Prediction results were compared with experimental results to prove the accuracy of numerical model. Acoustic absorption were addressed by using panel impedance coefficients with frequency characteristics and structural modal damping of numerical model were applied by modal testing results and analysis of prediction and test results. By using frequency response function, the floor acceleration and acoustic pressure responses for various impact sources were calculated at the same time. In the FEA, the natural frequencies and the shapes of vibration and acoustic modes can be estimated through the eigen-value analysis, and it can be visually seen the vibration and sound pressure field and the contribution of major modes.
Keywords
finite element method; FEM; heavy weight impact sound; frequency response function;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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