Finite element acoustic analysis of a steel stud based double-leaf wall

Arjunan, Arun; Wang, Changjiang; Yahiaoui, K.; Mynors, Diane J.; Morgan, T.; English, Martin

doi:10.1016/j.buildenv.2013.05.021

Cited by 42 publications

(31 citation statements)

References 15 publications

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“…The sound source was modelled as a frequency-dependent, harmonically-varying displacement of 1 mm, with a dimension of 0.4 m × 0.8 m at the center of the source room wall. In order to avoid spurious effects, several excitation frequencies ranging from ±5% [15] of the central frequencies at one-third-octave bands were considered.…”

Section: Geometrical Modelmentioning

confidence: 99%

“…Consequently, it was deemed interesting to investigate the possibilities of using an efficient meshing procedure within a vibro-acoustic context. The lack of literature on FEM to predict the noise behaviour of building components has also been reported in various publications [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…This is due to the geometrical criteria of transmission suites and standardized conditions of acoustic fields that lead to specific acoustic loading of the test specimen under fluid-structure interaction (FSI) [13]. Moreover, predicting the airborne sound transmission through multilayer structures with cavities and structural links, under the influence of FSI, is a rather difficult task due to the complex dynamic system involved [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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

Arjunan

Wang

English³

et al. 2015

Metals

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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.

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Section: Geometrical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Arjunan

Wang

English³

et al. 2015

Metals

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“…Even though the narrow frequency band exhibited by these absorbers are undesirable, the high sound absorption coefficient ( ) is suitable from a noise reduction perspective [8,9]. Accordingly, such sound absorbers are called 'bass traps' when used for low frequency attenuation [10].…”

Section: Introductionmentioning

confidence: 99%

Acoustic absorption of passive destructive interference cavities

Arjunan

2019

Materials Today Communications

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Acoustic products are primarily designed for broadband acoustic absorption.However, frequency-dependent acoustic absorption featuring passive designbased solutions are necessary to combat the growing noise pollution.Accordingly, this research investigates the targeted creation of sound absorption as a function of geometry utilising the principle of Acoustic Interference (AI). A methodology to design freeform geometries that can create targeted acoustic absorption is presented. The effectiveness of this methodology is then experimentally validated while quantifying the influence of length, diameter and geometry orientation. The results establish that AI has the potential to create 'near perfect' sound absorption that can be customised depending on the source frequency. The design freedom revealed by this study allows the exploitation of freeform geometries as passive highefficiency sound absorbing devices.

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“…Numerical models (Telue and Mahendran 2004;Asiz et al 2011) of building components which include plasterboard elements require the definition of the mechanical properties of plasterboards. Finally their mechanical properties also influence the acoustic performance and modelling of plasterboard components (Arjunan et al 2013), such as internal partitions.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Plasterboards: Experimental Tests and Statistical Analysis

Petrone

Magliulo

Manfredi

2016

J. Mater. Civ. Eng.

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Plasterboard components are widely used in current buildings worldwide. Despite their extensive use, the lack of a comprehensive test campaign on plasterboards in the current literature is denoted. An extensive test campaign, consisting of 302 tests, on plasterboards is performed both in tension and compression. A set of five plasterboard typologies is selected. The tests are performed in two different load directions, i.e. parallel or transversal to the direction of production. Tensile strength of boards is systematically smaller than compressive strength, whereas elastic modulus values in compression and in tension are similar. Two different regression laws are defined, matching compression and tension behavior, respectively. An orthotropic behavior is exhibited in case the boards are loaded in tension. The significant influence of board thickness on their mechanical properties is also highlighted. Finally the most appropriate probability distribution function is estimated for several mechanical parameters and the corresponding data dispersion is evaluated. The performed activities can be used as reference for future numerical studies involving plasterboards.

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Finite element acoustic analysis of a steel stud based double-leaf wall

Cited by 42 publications

References 15 publications

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

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

Acoustic absorption of passive destructive interference cavities

Mechanical Properties of Plasterboards: Experimental Tests and Statistical Analysis

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