Просторова вибірковість навігаційних і спеціальних гідроакустичних станцій

Anatolii Derepa; Igor Vovk; Olexandr Leiko; Olha Pozdniakova; Dmytro Kozak; Andrii Stopchenko

doi:10.34169/2414-0651.2024.1(41).122-127

Spatial selectivity of navigation and special hydroacoustic stations

Authors

Anatolii Derepa Central Scientific Research Institute of Armament and Military Equipment of Armed Forces of Ukraine
Igor Vovk Institute of Hydromechanics of the National Academy of Sciences of Ukraine
Olexandr Leiko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
Olha Pozdniakova Central Scientific Research Institute of Armament and Military Equipment of Armed Forces of Ukraine
Dmytro Kozak State University of Infrastructure and Technology
Andrii Stopchenko State University of Infrastructure and Technology

DOI:

https://doi.org/10.34169/2414-0651.2024.1(41).122-127

Keywords:

hydroacoustic station, acoustic horn, truncated spatial cone, spatial selectivity

Abstract

It is shown that the requirements for the spatial selectivity of several hydroacoustic stations for navigation and particular purposes necessitate using horn hydroacoustic antennas as part of the stations. Physical and computational models of horn antennas formed from a cylindrical transducer and two truncated cones on its ends have been developed. By the method of partial domains in the spherical coordinate system, considering the diversity of the interaction process of emitted and scattered sound waves, the boundary problem of determining the acoustic fields formed by such stations has been solved. Analytical relationships have been obtained, and a comprehensive numerical experiment has been conducted on their basis. Systematized analysis of its results allowed determining the regularities of the behavior of the spatial selectivity of hydroacoustic stations depending on the wave sizes of the transducer and the conical horns of the antenna and their opening angles. The physical reasons for the appearance of specific features in the behavior of the spatial selectivity of hydroacoustic stations have been established.

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Author Biographies

Anatolii Derepa, Central Scientific Research Institute of Armament and Military Equipment of Armed Forces of Ukraine

Doctor of Technical Sciences, Professor

Igor Vovk , Institute of Hydromechanics of the National Academy of Sciences of Ukraine

Doctor of Physics and Mathematics, Professor

Olexandr Leiko, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Doctor of Technical Sciences, Professor

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

Candidate of Technical Sciences

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