混响室法对不同材料吸声效果的探究  

Exploration of the Sound Absorption Effects to Different Materials by Reverberation Chamber Method

作　　者：徐希鹏 金伟 付伟 张羽 王忠杰[2] 

机构地区：[1]南车南京浦镇车辆有限公司,南京210031 [2]上海市隧道工程轨道交通设计研究院,上海200233

出　　处：《装备机械》2015年第2期10-13,共4页The Magazine on Equipment Machinery

摘　　要：通过在混响室内进行不同材料吸声系数测试与数据分析,结果表明,同种材料不同测试面积对其吸声系数有影响,而不同材料在不同频带下,最佳吸声效果也不相同。According to the tests of the acoustical absorption coefficients of different materials in the rever- beration room and data analysis, the results show that same kind of material with different test areas may have an effect on the absorption coefficient and different materials in different frequency bands should present differences in terms of optimal absorption effects.

关 键 词：吸声系数 噪声 混响室 

分 类 号：U260.16[机械工程—车辆工程]