Evaluation of the Oscillation Velocity in the Neck of the Helmholtz Resonator in Nonlinear Regimes

被引:3
|
作者
Komkin, Alexandr [1 ]
Bykov, Aleksei [1 ]
Saulkina, Olga [1 ]
机构
[1] Bauman Moscow State Tech Univ, Dept Environm & Safety, Moscow 105005, Russia
来源
ACOUSTICS | 2022年 / 4卷 / 03期
关键词
Helmholtz resonator; neck; oscillation velocity; sound pressure; high level; methods; measurement; ACOUSTIC-IMPEDANCE; SOUND-ABSORPTION;
D O I
10.3390/acoustics4030035
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Methods for measuring the acoustic characteristics of orifices have been reviewed. Comparison of three methods for evaluating of oscillation velocity in the neck of the Helmholtz resonator are presented. The first method is measurements in an impedance tube with the two-microphone method, the second is based on measuring the sound pressure in the resonator chamber, and the third is based on direct measurements of bias flow with a Pitot tube. The results of measuring the oscillation velocity in the neck of the Helmholtz resonator are presented, and show that these methods are in good agreement only within linear acoustics, but they lead to different results in nonlinear regimes characterized by high sound pressure levels.
引用
收藏
页码:564 / 573
页数:10
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