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Optimization of Multi-Layer Panel Constructions Using Experimental Modeling via Transfer Matrix Method
Technical Paper
2019-01-1577
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In a previous paper [1], a method was introduced to predict the sound transmission loss (STL) performance of multi-layer panel constructions using a measurement-based transfer matrix method. The technique is unique because the characterization of the poro-elastic material is strictly measurement based and does not require modeling the material. In this paper, it is demonstrated how the technique is used to optimize the STL of lightweight, multi-layer panel constructions. Measured properties of several decoupler materials (shoddy and foam) are combined with sheet metal and barrier layers to find optimal combinations. The material properties are measured with the impedance tube per ASTM E2611 [2].
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Citation
Green, E. and Anton, J., "Optimization of Multi-Layer Panel Constructions Using Experimental Modeling via Transfer Matrix Method," SAE Technical Paper 2019-01-1577, 2019, https://doi.org/10.4271/2019-01-1577.Also In
References
- Anton , J. and Green , E.R. 2018
- ASTM E2611-09 2009
- Sorenson , S. , Ebbitt , G. , Smith , S. , and Remtema , T. Optimizing Transmission Loss for Lightweight Body Structures SAE Technical Paper 2017-01-1812 2017 10.4271/2017-01-1812
- Song , B.H. and Bolton , J.S. A Transfer Matrix Approach for Estimating the Characteristic Impedance and Wave Numbers of Limp and Rigid Porous Materials JASA 107 3 1131 1152 2000
- Biot , M.A. Theory of Propagation of Elastic Waves in a Fluid-Saturated Porous Solid, I & II JASA 28 168 191 1956
- Allard , J.F. and Attalla , N. Propagation of Sound in Porous Media: Modelling Sound Absorbing Materials Second New York John Wiley & Sons 2009