微缝吸声板吸声性能探讨  

Discussion on Sound Absorption Performance of Mic-slit Sound Absorbing Board

作　　者：岳峰丽[1] 董磊 王楷焱 蒋从双 宋鲁涛 YUE Fengli;DONG Lei;WANG Kaiyan;JIANG Congshuang;SONG Lutao(Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学汽车与交通学院,沈阳110159

出　　处：《沈阳理工大学学报》2024年第4期86-91,共6页Journal of Shenyang Ligong University

基　　金：国家自然科学基金项目(12204056)。

摘　　要：为了研究微缝吸声板的几何参数对其吸声性能的影响,以微孔吸声板理论为基础,设计制作了微缝吸声板,对微缝吸声板进行阻抗管试验并与仿真模拟结果进行对比分析,仿真结果与试验结果基本一致。通过仿真不同几何参数下微缝吸声板的相对声阻抗,计算得出吸声系数进行对比,结果表明,当缝宽和膜厚相对增加时,微缝吸声板的吸声峰值和吸声带宽均略有减小。In order to study the effect of geometric parameters on the sound absorption performance of micro-slit board,micro-slit sound absorbing board was designed and manufactured based on the theory of micro-porous sound absorption board.Impedance tube tests were carried out on the micro-slit sound absorbing board and the simulation results were compared and analyzed,and the simula-tion results were basically consistent with the experimental results.Then,by simulating the relative acoustic impedance of micro-slit sound absorbing board with different geometric parameters,the a-coustic absorption coefficient was calculated and compared.The results show that when the slit width and film thickness increase,the sound absorption peak value and the sound absorption band-width of the micro-slit sound absorbing board decrease slightly.

关 键 词：微孔吸声板 微缝吸声板 吸声性能 模拟分析 

分 类 号：TB535[理学—物理]