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Prediction of Heavy-Weight Floor Impact Sound in Multi-unit House using Finite Element Analysis
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 Title & Authors
Prediction of Heavy-Weight Floor Impact Sound in Multi-unit House using Finite Element Analysis
Mun, Dae-Ho; Lee, Sang-Hyun; Hwang, Jae-Seung; Baek, Gil-Ok; Park, Hong-Gun;
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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.
finite element method;FEM;heavy weight impact sound;frequency response function;
 Cited by
Baek, G.O., Mun, D.H., Han, H.K., Park, H.G. (2015) Analysis of Heavy-weight Floor Impact Noise and Vibration of Concrete Slabs in a Residential Building, The World Congress on Advances in Structural Engineering and Mechanics.

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Mun, D.H., Park, H.G., Hwang, J.S. (2014) Prediction of Concrete Slab Acceleration and Floor Impact Noise Using Frequency Response Function, Trans. Korean Soc. Noise & Vib. Eng., 24(6), pp.483-492. crossref(new window)

Mun, D.H., Park, H.G., Hwang, J.S., Hong, G.H, Im, J.H (2012) Numerical Analysis of Heavy-weight Impact Noise for Apartment Units Considering Acoustic Mode, Trans. Korean Soc. Noise & Vib. Eng., 22(7), pp.676-684. crossref(new window)