作　　者： ; ;

机构地区： 浙江大学

出　　处： 《华南理工大学学报（自然科学版）》 2007年第B10期120-123,共4页

摘　　要： 为了研究微穿孔膜墙面吸声结构和空间吸声体的声学特性,在混响室中对8组墙面吸声体与7组空间吸声体的宽频带吸声系数进行了测量,以探讨吸声体的构造与其声学特性之间的关系.测量数据表明,微穿孔膜墙面吸声构造和空间吸声体具有良好的声学性能.该测量数据可以直接应用于实际声学工程,也可以用来与理论计算进行比较研究. In order to reveal the absorption properties of micro-perforated membrane absorbers and space absorbers, the broad-band absorption coefficients of eight wall absorbers and seven space absorbers with various perforation ratios and air cavities were measured and compared, thus investigating the correlations between the configurations and the sound absorption properties of the absorbers. The results indicate that both the micro-perforated membrane absorbers and the Space absorbers have excellent absorption properties, and that the reliable first-band data not only can be immediately applied in practice but also are useful for the comparisons with theoretical calculations.

关 键 词： 透明微穿孔膜吸声体 吸声系数 穿孔率 空气层厚度

领　　域： [建筑科学]