Rubber-Liquid Resonator

The acoustic characteristics of a rubber-liquid resonator are calculated, combining the properties of an empty rubber cavity, a Helmholtz resonator, and a water–air resonator, gas bubble in a viscoelastic medium and in a shell, and a bubble in a liquid. The equation of the forced oscillations of the...

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Bibliographic Details
Published in:Acoustical physics 2020-07, Vol.66 (4), p.344-351
Main Author: Kazakov, L. I.
Format: Article
Language:English
Subjects:
Acoustic properties
Acoustics
Air chambers
Cavity resonators
Energy dissipation
Forced vibration
Heat loss
Helmholtz resonators
Mathematical analysis
Physical Acoustics
Physics
Physics and Astronomy
Principle of least action
Resonant frequencies
Rubber
Shear viscosity
Sound waves
Viscosity
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Summary:The acoustic characteristics of a rubber-liquid resonator are calculated, combining the properties of an empty rubber cavity, a Helmholtz resonator, and a water–air resonator, gas bubble in a viscoelastic medium and in a shell, and a bubble in a liquid. The equation of the forced oscillations of the resonator in the sound wave field is obtained by applying the principle of least action. The eigenfrequency of the resonator is calculated. The following sound energy dissipation mechanisms are considered: due to the shear viscosity of rubber, the viscosity of liquid in the neck, heat loss in the air chamber, and radiation loss. Experimental data are presented. Possible resonator applications are discussed.
ISSN:1063-7710
1562-6865
DOI:10.1134/S1063771020020037