Material Parameter Determination in Glass Wool Mat for Sound Absorption

摘要：

Glass wool mat is widely used in the fields of building engineering, transport facilities and refrigeration equipment. In this paper, the effect of material parameters such as density, thickness, porosity, and flow resistivity on the normal incidence absorption coefficient has been studied. In addition, fiber length is also investigated to achieve appropriate strength. The prediction error of normal incidence absorption coefficient by modified Johnson-Allard model is less than 5％ in the frequency range between 800 Hz and 5 kHz. We could use the modified Johnson-Allard model to determine the parameter of glass wool mat for better development.

关键词： Glass wool mat Normal incidence absorption coefficient Modified Johnson-Allard model.

作者: Chengdong Li Zhaofeng Chen Jieming Zhou Binbin Li Wangping Wu Zhou Chen Tengzhou Xu Jinlian Qiu

作者单位: College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanj Suzhou V. I. P. New Material Co., Ltd, Hong Da Fang Yuan Group, Suzhou 215000, P.R. China

会议类型: 国际会议

会议名称: 2011 International Conference on Machanical Engineering,Materials and Energy(2011年机械工程、材料与能源国际会议 ICMEME 2011)

会议地点: 大连

会议语种:英文

页码: 1271-1275

在线出版日期: 2011-10-19（万方平台首次上网日期，不代表论文的发表时间）