Open AccessNoise Reduction Effect of Porous Asphalt Pavement Based on Acoustic-Structure Coupling Model
Author(s) -
Jianhua Yang,
Zhou Qiu,
Chuanfeng Zheng
Publication year - 2021
Publication title -
environmental and earth sciences research journal
Language(s) - English
Resource type - Journals
eISSN - 2369-5676
pISSN - 2369-5668
DOI - 10.18280/eesrj.080206
Subject(s) - porosity , multiphysics , noise reduction , noise (video) , reduction (mathematics) , absorption (acoustics) , materials science , asphalt , traffic noise , acoustics , porous medium , geotechnical engineering , coupling (piping) , environmental science , composite material , geology , engineering , finite element method , computer science , structural engineering , physics , geometry , mathematics , image (mathematics) , artificial intelligence
Nowadays, the traffic noise problem is becoming increasingly prominent. In order to study the influence of porosity and pore depth on the noise reduction performance of asphalt pavement, this paper used the software COMSOL Multiphysics to establish acoustic-structure coupling models, and simulated the sound absorption and noise reduction effect of asphalt pavement under 10%, 15%, 20%, 25%, and 30% porosity; moreover, under the condition of unchanged asphalt pavement porosity, the sound absorption and noise reduction effect of asphalt pavement under 3cm, 4cm, 5cm, 6cm, and 7cm pore depth was studied as well. The research results reveal that, with the increase of porosity and pore depth, the sound absorption and noise reduction effect of asphalt pavement gets better.