Study on the influence of boundary conditions on the airflow resistivity measurement of porous material

Xiong, Xinzhong; Li, Xuewen; Wu, Liang; Pang, Jinxiang; Zhang, Hewei

doi:10.1016/j.apacoust.2019.107181

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…Generally, the general pore ratio is embedded in the sound absorption coefficient [55]. Some SA studies have investigated specimens of different pore sizes [56], pores shape [57], and pores distribution [58] to improve the stability and accuracy of the sound absorption simulation result.…”

Section: Civil and Environmental Engineeringmentioning

confidence: 99%

Trend of Sound Absorption Research: A Bibliometric Analysis

Yap

Liew

Khalid

et al. 2022

Civil and Environmental Engineering

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The growing world population and urbanization have worsened noise pollution, driving the development of sound absorption (SA) research across the globe. This study aims to analyse the SA global research trends and discover the opportunities for future development or collaboration using systematic bibliometric analysis. A total of 2970 articles since 1913 were systematically retrieved. Results reveal that the most productive journal had taken 10.3 % of the total publications. A high correlation r = 0.87 was found between the number of co-authorship and the h-index of a scholar. China has the highest number of publications 55.3 % and most research focused on porous materials. Present findings could be helpful to further develop SA from a global level perspective.

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Section: Civil and Environmental Engineeringmentioning

confidence: 99%

Trend of Sound Absorption Research: A Bibliometric Analysis

Yap

Liew

Khalid

et al. 2022

Civil and Environmental Engineering

View full text Add to dashboard Cite

show abstract

“…By referring to the prediction of the resistivity based on air voids, several models (empirical or theoretical) were derived in the past to predict the airflow resistivity of porous media (Filippo Giammaria Praticò et al, 2017;Xiong et al, 2020;Yang et al, 2018). For predicting the air flow resistivity, the following explanatory variables were considered in the past (Praticò et al, 2017a): porosity, tortuosity, thickness, aggregate gradation, and pore characteristics (diameter and radius of the pores, semi-width of slit-like pores).…”

Section: Investigation On Acousticmentioning

confidence: 99%

Investigation on Acoustic Versus Functional Characteristics of Porous Asphalt

Praticò

Fedele

Briante

2021

BJRBE

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The theoretical background, standards, and contract requirements of pavement friction courses involve functional (e.g., permeability) and acoustic (e.g., resistivity) characteristics. Unfortunately, their relationship is partly unknown and uncertain. This affects the comprehensiveness and soundness of the mix design of asphalt pavements. Based on the issues above, the goals of this study were confined into the following ones: 1) to investigate the relationship between acoustic and functional properties of porous asphalts; 2) to investigate, through one-layer (1L) and two-layer (2L) models, the effectiveness of the estimates of acoustic input data through mixture volumetric- and permeability-related characteristics. Volumetric and acoustic tests were performed and simulations were carried out. Equations and strategies to support a comprehensive approach were derived. Results demonstrate that even if the measured resistivity is very important, permeability-based estimates of resistivity well explain acoustic spectra. Furthermore, the distance between observed and estimated peaks of the absorption spectrum emerges as the best error function.

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Airflow resistivity measurement and sound absorption performance analysis of sound-absorb cotton

Xiong

Pang

et al. 2021

Applied Acoustics

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Study on the influence of boundary conditions on the airflow resistivity measurement of porous material

Cited by 5 publications

References 21 publications

Trend of Sound Absorption Research: A Bibliometric Analysis

Trend of Sound Absorption Research: A Bibliometric Analysis

Investigation on Acoustic Versus Functional Characteristics of Porous Asphalt

Airflow resistivity measurement and sound absorption performance analysis of sound-absorb cotton

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