“回”形超构复合消声器的设计及研究  

Design and research of the“loop”-shaped metastructure composite muffler

作　　者：赵亚林 王绿 马建刚 杨涵杰 徐靖鉴 肖和业[3] 周杰 ZHAO Yalin;WANG Lyu;MA Jiangang;YANG Hanjie;XU Jingjian;XIAO Heye;ZHOU Jie(Shaanxi Electric Power Research Institute of SGCC,Xi′an 710054,China;School of Aeronautics,Northwestern Polytechnical University,Xi′an 710072,China;Unmanned System Research Institute,Northwestern Polytechnical University,Xi′an 710072,China)

机构地区：[1]国网陕西省电力有限公司电力科学研究院,陕西西安710054 [2]西北工业大学航空学院,陕西西安710072 [3]西北工业大学无人系统研究院,陕西西安710072

出　　处：《哈尔滨工程大学学报》2022年第9期1376-1382,共7页Journal of Harbin Engineering University

基　　金：国网陕西省电力有限公司科技项目(5226KY20001J);国家自然科学基金面上项目(12072277)。

摘　　要：为了提高变电站阻性矩阵消声器的中低频声学性能,本文基于管道声学和声学超材料理论,将“回”形空腔的中低频吸声特性和多孔材料的高频吸声特性进行了结合设计,提出了一种超构复合式消声器,对消声单元和矩阵消声器的声学性能进行了分析计算。仿真结果表明:在100~400 Hz的频段内,超构复合消声器较原有阻性消声器的降噪性能得到明显提升,并可降低14.7%的多孔材料使用率。To improve the low-and mid-frequency acoustic performance of an array muffler in a substation,based on the theory of duct acoustics and acoustic metamaterials and combining the low-to-mid frequency sound absorption characteristics of the“loop”-shaped cavity and the high-frequency sound absorption characteristics of the porous materials,we proposed a composite metastructure muffler in this paper,analyzed and calculated the acoustic performance of a single muffler and an array of mufflers.The simulation results show that in the frequency bands of 100-400 Hz,compared with the traditional resistance muffler,the noise reduction performance of a metastructure composite muffler is significantly improved,and the utilization rate of the porous material can be reduced by 14.7%.

关 键 词：消声器 降噪 超构 传声损失 多孔材料 穿孔板 

分 类 号：TM63[电气工程—电力系统及自动化] X593[环境科学与工程—环境工程]