Reduction of low-frequency noise from a built-in refrigerator using a perforated plate system

被引：0

作者：

Kim, Hyoungjin ^{[1
]}

Shin, Jeonghyun ^{[1
]}

Song, KyungJun ^{[1
]}

Kim, Tae-Hoon ^{[1
]}

Koo, Junhyo ^{[1
]}

机构：

[1] Pusan Natl Univ, Sch Mech Engn, 2 Busandaehak Ro, Busan 46241, South Korea

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA | 2024年 / 43卷 / 05期

关键词：

Perforated plate system; Acoustic impedance; 2-microphone transfer-function method; Radiated acoustic power level;

D O I：

10.7776/ASK.2024.43.5.584

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper investigates the reduction of low-frequency noise emitted from the machine room of a built-in refrigerator using perforated plate system composed of perforated panels and sound-absorbing materials. The study employs theoretical methods, Finite Element Analysis (FEA), and impedance tube experiments to compare and analyze absorption characteristics across different shapes of perforated panels, aiming to propose an optimal configuration. Simulation of radiated sound power levels demonstrates a decrease in the low-frequency band of the Sound Power Level (PWL) upon implementing perforated plate system. Experimental noise tests conducted in a semi-anechoic chamber validate the effectiveness of the perforated plate system.

引用

页码：584 / 591

页数：8

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