| Autor: |
Kubenko, V. D., Yanchevskyi, I. V. |
| Zdroj: |
International Applied Mechanics; Jul2024, Vol. 60 Issue 4, p395-405, 11p |
| Abstrakt: |
This study investigates the diffraction of a plane wave by an elastic spherical shell through solving the axisymmetric boundary problem of hydroelasticity. The shell filled with compressible fluid (encapsulated particle) is immersed in another fluid in a cylindrical cavity. We have derived expressions for several specific cases of this interaction problem, considering both traveling and standing waves with a spherical inclusion positioned along the axis of an infinite or semi-infinite cylindrical cavity. Additionally, the study examines the acoustic radiation force acting on the encapsulated particle as a function of standing wave frequency and the physical and geometric parameters of the mechanical system. The accuracy of the derived equations and computations has been confirmed by agreement between our computations and existing literature data. Numerical experiments have shown that a thin elastic shell induces the jumps in the radiation force at standing wave frequencies close to the natural frequencies of the shell. When the standing wave length exceeds the particle diameter, the amplitude of the radiation force acting on the particle in an infinite medium tends to zero. However, in the case of a particle within the cylindrical cavity, the radiation force reaches its maximum in this frequency range. The direction of this force depends on the location of the wave nodal point and the physical parameters of the mechanical system. The presented methodology enables the precise computations of the radiation force and the determination of standing wave frequencies for the controlled manipulation of the encapsulated particle within the cylindrical cavity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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