多孔材料吸声模型及其工程研究方法  

The model of sound absorption porous materials and it＇s usage in project

作　　者：蔡坤鹏[1] 李明[1] 黄学辉[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《功能材料》2007年第A10期3741-3744,共4页Journal of Functional Materials

摘　　要：引述了多孔吸声材料的圆管理论模型，引出声阻、声抗的概念，并对此进行了数学编程计算与分析；同时还从工程研究角度给出影响材料吸声性能的阻抗准数，应用该准数对材料的吸声性能进行解释和预测，试图提供一种测量和计算材料吸声系数的新方法。In this paper, a modlel of sound absorption materials was prepared, with a description of sound resistance, then it was worked out and analysed in mathematic program. As a conclusion, the conception of sound resistance parameter was introduced to explain the sound absorption of porous materials. This parameter can be used to predicate the sound absorption capability of porous materials, and also provides a new method to measure the sound absorption capability of porous materials.

关 键 词：圆管模型 声阻抗 阻抗准数 

分 类 号：O422.4[理学—声学] TB383[理学—物理]