复合材料声衬声阻抗性能测试试验研究  

Experimental Study on Acoustic Impedance of Composite Acoustic Liner

作　　者：黄太誉[1] 高翔[1] Huang Taiyu;Gao Xiang(The 32nd Research of China Aircraft Strength Research Institute,Xi′an 710065,Shaanxi,China)

机构地区：[1]中国飞机强度研究所第三十二研究室,陕西西安710065

出　　处：《工程与试验》2020年第2期36-39,73,共5页Engineering and Test

摘　　要：声衬是降低发动机噪声的重要组件。为探索复合材料在声衬上的应用,本文基于Helmholtz原理,采用树脂基复合材料,针对某特定工况设计制备了微穿孔板蜂窝夹层结构声衬,并开展了相应的试验研究。研究结果表明,按照当前树脂基复合材料良好的加工性能和制备工艺,该声衬能够较好地满足结构参数和声学性能的设计要求。Acoustic liner an important component to reduce engine noise.In order to explore the application of composite materials to the acoustic liner,based on the Helmholtz principle,the acoustic liner of micro perforated plate honeycomb sandwich structure is designed and prepared,and the corresponding test research is carried out.The results show that according to the good processing performance and preparation process of resin matrix composite,it can meet the design requirements of structural parameters and acoustic properties.

关 键 词：树脂基复合材料 声衬 声阻抗 

分 类 号：V216.54[航空宇航科学与技术—航空宇航推进理论与工程]