摘要
多孔吸声材料具有吸声系数高、吸声频带宽等优点,采用多孔吸声材料的圆管理论模型,并对此进行数学编程计算与分析,结合工程实际,研究多孔材料孔隙率、孔径、厚度以及结构因子对多孔材料吸声性能的影响,对实际的设计有一定参考价值。
Porous sound-absorbing materials are widely used because of its high sound absorption coefficient and wide absorption frequency range.In this paper,a model of sound absorption materials is adopted,and the design parameters are computed.The influence of porosity,diameter of holes,thickness and structure of the material on its sound-absorbing property is analyzed.This work provides a reference for the development of new sound-absorbing material.
出处
《噪声与振动控制》
CSCD
北大核心
2011年第2期123-126,共4页
Noise and Vibration Control
基金
科学技术部社会公益专项基金项目
关键词
声学
多孔吸声材料
吸声系数
孔隙率
acoustics
porous sound-absorbing materials
absorption coefficient
porosity
