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Metals 2015, 5(3), 1414-1431; doi:10.3390/met5031414

A Computationally-Efficient Numerical Model to Characterize the Noise Behavior of Metal-Framed Walls

1
Faculty of Science and Engineering, University of Wolverhampton, Telford TF2 9NT, UK
2
School of Engineering and Informatics, University of Sussex, Brighton BN1 9QJ, UK
3
Hadley Group Technology, Hadley Industries PLC, Smethwick B66 2PA, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 12 June 2015 / Accepted: 3 August 2015 / Published: 7 August 2015
(This article belongs to the Special Issue Serration and Noise Behavior in Advanced Materials)
View Full-Text   |   Download PDF [1860 KB, uploaded 7 August 2015]   |  

Abstract

Architects, designers, and engineers are making great efforts to design acoustically-efficient metal-framed walls, minimizing acoustic bridging. Therefore, efficient simulation models to predict the acoustic insulation complying with ISO 10140 are needed at a design stage. In order to achieve this, a numerical model consisting of two fluid-filled reverberation chambers, partitioned using a metal-framed wall, is to be simulated at one-third-octaves. This produces a large simulation model consisting of several millions of nodes and elements. Therefore, efficient meshing procedures are necessary to obtain better solution times and to effectively utilise computational resources. Such models should also demonstrate effective Fluid-Structure Interaction (FSI) along with acoustic-fluid coupling to simulate a realistic scenario. In this contribution, the development of a finite element frequency-dependent mesh model that can characterize the sound insulation of metal-framed walls is presented. Preliminary results on the application of the proposed model to study the geometric contribution of stud frames on the overall acoustic performance of metal-framed walls are also presented. It is considered that the presented numerical model can be used to effectively visualize the noise behaviour of advanced materials and multi-material structures. View Full-Text
Keywords: numerical analysis; metal framed walls; vibro-acoustics; sound insulation; sound transmission numerical analysis; metal framed walls; vibro-acoustics; sound insulation; sound transmission
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Arjunan, A.; Wang, C.; English, M.; Stanford, M.; Lister, P. A Computationally-Efficient Numerical Model to Characterize the Noise Behavior of Metal-Framed Walls. Metals 2015, 5, 1414-1431.

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