Modeling of Sound Absorption Propertes of Porous Asphalt Pavement Based on Electro--Acoustic Theory-Reference-Cited by-同舟云学术

Modeling of Sound Absorption Propertes of Porous Asphalt Pavement Based on Electro--Acoustic Theory

Published:2022-08-24 Issue: Volume:929 Page:129-134
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Chen Fei¹,He Xue Rui²,Hu Qing Xia²,Chao Heng³,Yi Kai⁴

Affiliation:

1. Research Institute of Highway Ministry of Transport

2. Puyang Highway Development Center

3. External Liaison Bureau of Puyang Economic and Technological Development Zone

4. Henan Transportation Development Group Co., Ltd. Puyang branch

Abstract

A meso-geometric model of pore network was established to predict the sound absorption performance of porous asphalt mixture.Based on characteristics of the pore structure of porous asphalt mixture, the meso-structure model of porous asphalt mixture was established by using physical geometry principle.For the meso-void structure, the electro-acoustical equivalent circuit was established based on electro--acoustic theory, and the relationship between the sound absorption coefficient and the total impedance was established.The model was verified by image processing technology and standing wave ratio method.DIP image processing technology was used to determine these void structure parameters of porous asphalt mixture specimens, and standing wave tube method was used to test the sound absorption coefficient of specimens.The data predicted by the model was compared with the measured data.The results show that the model of meso-void structure and the model of sound absorption coefficient of porous asphalt mixture based on electro--acoustic theory are feasible and effective.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.929.129.pdf

Reference12 articles.

1. Wang, X., and Lu, T. J..Optimized acoustic properties of cellular solids.Journal of the Acoustic Society of America, 1999,106(2):756-765.

2. Voronina, N..An empirical model for rigid frame porous materials with low porosity. Applied Acoustics, 1999, 58:295-304.

3. Francois, H. J., and Michel, B., Acoustical characteristics of porous pavements: A new phenomenological model, Proceedings of Inter Noise 93, Leuven, Belgium, August 1993:641-646.

4. Brennan, M.J., and To, W.M. Acoustic properties of rigid frame porous materials-an engineering perspective. Applied Acoustics, 2001, 62:793-811.

5. WANG Z, XIE J, GAO L, et al.Improvement of Acoustic Model and Structural Optimization Design of Porous Asphalt Concrete Based on Meso-structure Research.Construction and Building Materials,2020,265: 120327．.