TO THE QUESTION OF SOLVING THE PROBLEM OF SOUND RADIATION IN A CONFINED LIQUID SPACE OF A WAVEGUIDE TYPE

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DOI:
https://doi.org/10.34169/2414-0651.2020.3(27).85-94
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Array, Array, Array, Array, Array, Array, Array
Abstract

 A method for solving the acoustic problem of sound emission by a spherical transducer in confi ned liquid spaces is considered. A new formulation and a method for solving the acoustic problem of sound radiation by a spherical source in the presence of ideal boundaries of an acoustically rigid type are proposed. The method does not involve the usage of traditional integral methods and methods of imaginary sources. The procedure of the method includes the usage of solutions of only the homogeneous Helmholtz equation, according to the Fourier method, of boundary conditions such as the Neumann problem and the Fresnel zone method. The result is considered the distribution of amplitudes and phases of acoustic pressures (vibrational velocities) in the near and far fi eld of the radiator, produced by a source of the selected type. The possibility and application of solutions to the problem for generating excitation coeffi cients by a pulsating source of a plane-parallel waveguide with rigid bounda ries is shown. At the same time, explanations of the physical nature of the accompanying effects are given – a change in vibrational movements due to the coupling of the vibration modes of the sphere and the type of electrodes. The article is basic and has the prospect of development, by increasing the number of options for working situations, combinations of boundary conditions, circumstances of the source in accordance with the requirements of the present. The aim of the work is to expand the methodological capabilities of theoretical research, statements and solutions of wave acoustics problems.

Author Biographies
  1. Oleksii Korzhyk, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

    Doctor of Technical Sciences, Professor

    Professor of the Department of Acoustics and Acoustoelectronics

    of the National technical university of Ukraine “Igor Sikorsky

    Kyiv polytechnic institute”

    Kyiv, Ukraine

  2. Oleksandr Chaika, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

    Master of the Department of Acoustics and Acoustoelectronics of

    the National technical university of Ukraine “Igor Sikorsky Kyiv

    polytechnic institute”

    Kyiv, Ukraine

  3. Valeria Nizhynska, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

    Bachelor of the Department of Acoustics and Acoustoelectronics

    of the National technical university of Ukraine “Igor Sikorsky

    Kyiv polytechnic institute”

    Kyiv, Ukraine

  4. Natalia Bohdanova, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

    Candidate of Technical Sciences, Associate Professor

    Associate Professor of the Department of Technical Cybernetics of

    the National technical university of Ukraine “Igor Sikorsky Kyiv

    polytechnic institute”

    Kyiv, Ukraine

  5. Olha Pozdniakova, Central Scientific Research Institute of Armament and Military Equipment of the Armed Forces of Ukraine

    Candidate of Technical Sciences

    Junior researcher of the Department of Armament and Military

    Equipment of Navy of the Central Research Institute of Armament and Military Equipment of the Armed Forces of Ukraine

    Kyiv, Ukraine

  6. Serhii Kurdiuk, Institute of Naval Forces of the National University "Odesa Maritime Academy"

    Senior Instructor of the Department of Naval Institute of the

    National University «Odessa Maritime Academy»

    Odesa, Ukraine

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Published
2020-09-30
Issue
Vol. 27 No. 3 (2020): Weapons and military equipment
Section
NAVY ARMAMENT & EQUIPMENT
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Copyright (c) 2020 Олексій Коржик,Олександр Чайка,Валерія Ніжинська,Наталія Богданова,Ольга Позднякова,Сергій Курдюк

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TO THE QUESTION OF SOLVING THE PROBLEM OF SOUND RADIATION IN A CONFINED LIQUID SPACE OF A WAVEGUIDE TYPE . (2020). Weapons and Military Equipment, 27(3), 85-94. https://doi.org/10.34169/2414-0651.2020.3(27).85-94

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