An application of the Peano series expansion to predict sound propagation in materials with continuous pore stratification

Geslain, Alan; Groby, Jean‐Philippe; Dazel, Olivier; Mahasaranon, Sararat; Horoshenkov, Kirill V.; Khan, Amir

doi:10.1121/1.4728188

Cited by 14 publications

(14 citation statements)

References 16 publications

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“…To avoid some of the limitations discussed above, it is common to use some optimization method to determine indirectly the input parameters that let the acoustic model obtain the best fit to the impedance tube measurements (40,41). This procedure is also recurrently used when any of the previous physical parameters are difficult to measure or cannot be properly determined, as it was in the current investigation for the tortuosity.…”

Section: Inverse Numerical Methodsmentioning

confidence: 99%

Acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates

Carbajo¹,

Esquerdo-Lloret²,

Ramis³

et al. 2015

Mater. construcc.

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ABSTRACT:The use of sustainable materials is becoming a common practice for noise abatement in building and civil engineering industries. In this context, many applications have been found for porous concrete made from lightweight aggregates. This work investigates the acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates. These natural resources can still be regarded as sustainable since they can be recycled and do not generate environmentally hazardous waste. The experimental basis used consists of different type specimens whose acoustic performance is assessed in an impedance tube. Additionally, a simple theoretical model for granular porous media, based on parameters measurable with basic experimental procedures, is adopted to predict the acoustic properties of the prepared mixes. The theoretical predictions compare well with the absorption measurements. Preliminary results show the good absorption capability of these materials, making them a promising alternative to traditional porous concrete solutions. RESUMEN: Propiedades acústicas del hormigón poroso a base de áridos ligeros de arlita y vermiculita.El uso de materiales sostenibles se está convirtiendo en una práctica común para la reducción de ruido en las industrias de la edificación e ingeniería civil. Este trabajo investiga las propiedades acústicas de hormigón poroso fabricado a partir de áridos ligeros de arlita y vermiculita. Estos recursos naturales todavía pueden considerarse sostenibles ya que pueden ser reciclados y no generan residuos peligrosos para el medio ambiente. La base experimental utilizada se compone de especímenes de diferente tipo cuyas prestaciones acústicas se evalúan en un tubo de impedancia. Adicionalmente, se ha adoptado un modelo teórico simple para medios porosos granulares, basado en parámetros medibles con procedimientos experimentales básicos, con objeto de predecir las propiedades acústicas de las mezclas preparadas. Las predicciones teóricas muestran una buena concordancia con las medidas de absorción. Los resultados preliminares demuestran la buena capacidad absorbente de estos materiales, haciendo de ellos una alternativa prometedora a las soluciones de hormigón poroso tradicionales.

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Section: Inverse Numerical Methodsmentioning

confidence: 99%

Acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates

Carbajo¹,

Esquerdo-Lloret²,

Ramis³

et al. 2015

Mater. construcc.

View full text Add to dashboard Cite

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“…Increased accuracy is obtained by discretization and a higher order numerical scheme. Other possible numerical schemes, such as the Peano series [24,25] are also possible although not applied here.…”

Section: The Transfer Matrix Methodsmentioning

confidence: 99%

Absorption of sound at a surface exposed to flow and temperature gradients

et al. 2016

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“…where I is the identity matrix of dimension 6×6. If the matrix K( ) is bounded in the study interval, these series are always convergent [37,40]. This solution to (14) is exact and unique.…”

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confidence: 91%

Three-Dimensional Elasticity Solutions for Sound Radiation of Functionally Graded Materials Plates considering State Space Method

Yang¹,

Huang

Li³

2016

Shock and Vibration

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This paper presents an analytical study for sound radiation of functionally graded materials (FGM) plate based on the three-dimensional theory of elasticity. The FGM plate is a mixture of metal and ceramic, and its material properties are assumed to have smooth and continuous variation in the thickness direction according to a power-law distribution in terms of volume fractions of the constituents. Based on the three-dimensional theory of elasticity and state space method, the governing equations with variable coefficients of the FGM plate are derived. The sound radiation of the vibration plate is calculated with Rayleigh integral. Comparisons of the present results with those of solutions in the available literature are made and good agreements are achieved. Finally, some parametric studies are carried out to investigate the sound radiation properties of FGM plates.

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An application of the Peano series expansion to predict sound propagation in materials with continuous pore stratification

Cited by 14 publications

References 16 publications

Acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates

Acoustic properties of porous concrete made from arlite and vermiculite lightweight aggregates

Absorption of sound at a surface exposed to flow and temperature gradients

Three-Dimensional Elasticity Solutions for Sound Radiation of Functionally Graded Materials Plates considering State Space Method

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