Acoustic metamaterial design for noise reduction in vacuum cleaner

被引：7
|
作者：
An, Ki Yong [1 ]
Kwon, Hojin [2 ]
Jang, Jun-Young [2 ]
Song, Kyungjun [2 ]
机构：
[1] LG Elect, Home Appliance & Air Solut Co, Changwon Si, Gyeongsangnam D, South Korea
[2] Pusan Natl Univ, Sch Mech Engn, Busan, South Korea
来源：
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2022年 / 36卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
Acoustic metamaterial; Helmholtz resonator; Unit cell;
D O I：
10.1007/s12206-022-1002-0
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this study, we investigate the acoustic metamaterial (AMM) design for flow noise reduction when using a vacuum cleaner. The AMM was based on the principle of Helmholtz resonators, and metamaterial design variables were defined to reduce noise to approximately 1.5 and 2.5 kHz bands. An acoustic simulation was performed considering the thermoviscous effect using the designed AMM, and a transmission loss in the simulation results was calculated using the four-microphone method. Finally, noise experiments were performed on a vacuum cleaner equipped with metamaterial. Through this, the noise reduction performance of metamaterial predicted through simulations was verified, thereby showing the selective implementation of noise reduction in the desired frequency band.
引用
收藏
页码：5353 / 5362
页数：10
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