Mechanical strength of hydroacoustic cylindrical radiators with internal screen

Authors
DOI:
https://doi.org/10.34169/2414-0651.2019.3(23).110-116
Keywords:
Array, Array, Array
Abstract

The frequency and angular characteristics of the amplitudes of the oscillatory velocities of cylindrical emitters in the internal volume of which liquid filled fluid are placed are shown, depending on the distance between the piezoceramic shell of the emitters and the screen. The mechanical strength of the radiators is estimated on their basis. It is shown that such technical realization of hydroacoustic emitters creates a number of advantages, interesting in terms of increasing the efficiency of sonar stations. It is established that the oscillatory speed of real sound sources depends significantly on both the internal impedance and the response of the external environment, since the sound sources are marked by the finite values ​​of their internal mechanical resistance. Therefore, by changing the sound field in the inner cavity of the converter, it is possible to control the parameters of its mechanical field. When operating radar stations in the radiation mode in the field of low-frequency resonances of the screened transducers, the danger of mechanical destruction of the transducers of hydroacoustic antennas due to a sharp increase in the amplitudes of their oscillatory speeds and the appearance of the possibility of exceeding the amplitude of the amplitude points is significantly increased. This fact should be taken into account in the construction of generator sets of tracts of radiation of radar stations.

Author Biographies
  1. A. V. Derepa, Central Scientific Research Institute of Armament and Military Equipment of the Armed Forces of Ukraine

    Doctor of Engineering
    Senior Research Fellow

  2. O. H. Leiko, National Technical University «Kyiv Polytechnic Institute named after Igor Sikorsky »

    Doctor of Engineering
    professor

  3. O. I. Drozdenko, National Technical University «Kyiv Polytechnic Institute named after Igor Sikorsky »

    Candidate of Technical Sciences
    docent

  4. A. O. Svyatnenko, State Enterprise "Kyiv Scientific- Hydraulic Instrument Research Institute »

    Head of Research Department

References
Cover Image
Downloads
Published
2019-09-26
Issue
Vol. 23 No. 3 (2019): Weapons and military equipment
Section
NAVY ARMAMENT & EQUIPMENT
License
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Mechanical strength of hydroacoustic cylindrical radiators with internal screen. (2019). Weapons and Military Equipment, 23(3), 110-116. https://doi.org/10.34169/2414-0651.2019.3(23).110-116

Most read articles by the same author(s)