Theoretical research on the application of impedance calculation in the design of high-intensity low-frequency acoustic generator

被引：0
|
作者：
Zhang, Baoguo [1 ]
Dong, Mingrong [2 ]
Liang, Xubin [1 ]
Zhang, Min [1 ]
Zhao, Tianqing [1 ]
He, Bin [1 ]
Sun, Deyu [1 ]
机构：
[1] Northwest Inst Nucl Technol, Xian, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Sci, Kunming, Peoples R China
来源：
JOURNAL OF LOW FREQUENCY NOISE VIBRATION AND ACTIVE CONTROL | 2024年 / 43卷 / 02期
关键词：
Acoustics; impedance matching; airflow modulator; resonator; acoustic generator; SELF-SUSTAINED OSCILLATIONS; HELMHOLTZ RESONATOR; DAMPING PERFORMANCES; LOW MACH; ORIFICES; JET;
D O I：
10.1177/14613484231221471
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The impedance matching is essential in producing high-intensity acoustic waves. This paper studies the impedance calculation methods of modulators and double-chamber Helmholtz resonators based on fluid mechanics, aeroacoustics, and electro-acoustic analogy principles. The results: (sic) The impedance expression of the resonators is derived. (sic) The impedance variation law of the chamber volume, the stator size, the air supply pressure, the air supply flow, and the working frequency is calculated. (sic) The impedance-matching design scheme of the two-chamber Helmholtz low frequency and high acoustic intensity generator is given. Based on the experimental results of the high acoustic intensity generating device that the author has manufactured in the closed space, the correctness of the impedance calculation and matching design scheme in this paper is verified. This method has guiding significance for the design of high-intensity acoustic generating devices in confined space.
引用
收藏
页码：906 / 919
页数：14
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