Open AccessMeasurement and Analysis of Acoustic Absorbing Coefficient of High-porosity Nickel Foam with Different Thickness
Author(s) -
Enshuai Wang,
Xinmin Shen,
Haiqin Duan,
Fei Yang,
Xiaonan Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1939/1/012040
Subject(s) - materials science , nickel , porosity , noise reduction coefficient , acoustics , composite material , tube (container) , attenuation coefficient , acoustic wave , optics , metallurgy , physics
The noise problems have gradually become a major problem that affect the health of personnel and hinders industrial progress. Metal foam is one kind of the porous media, which could be applied as effective acoustic absorbing materials. In this study, an uncompressed pure material nickel foam with the various thickness of 20, 40, 60, 80, 100mm was used for acoustic experiments under the condition of the test signal wave frequency range of 100-2000Hz. The corresponding acoustic absorbing coefficient was measured by AWA6128A standing wave tube tester, and the corresponding analysis was carried out. It proves that nickel foam has high acoustic absorbing coefficient at high frequencies, and the parameters of nickel foam can be changed to meet the requirement of different acoustic absorbing properties.