Mechanical strength of hydroacoustic cylindrical radiators with internal screen
DOI:
https://doi.org/10.34169/2414-0651.2019.3(23).110-116Keywords:
sonar station, acoustic screen, cylindrical emitterAbstract
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.
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2. Koryakyn, Yu. A., Smyrnov, S. A. and Yakovlev, H. V. (2005), «Korabelnaya hydroakustycheskaya tekhnyka: sostoyanye y aktualnyy problemy» [Ship sonar technology, condition and actual problems]. Nauka, St. Petersburg. 410 p.
3. Derepa, A. V., Leyko, A. H. and Melenko, Yu. Ya. (2014), «Osnovy voenno-tekhnycheskykh yssledovanyy. Teoryya y prylozhenyya. T. 7. Kompleksnaya systema «hydroakustycheskoye vooruzhenye – nadvodnyy korabl». Problemnyye aspekty systemy «hydroakustycheskaya stantsyya – nadvodnyy korabl» s antennamy, razmeshchennymy v korpuse korablya» [Fundamentals of military technical research. Theory and applications. T. 7. Integrated system «hydroacoustic armament - surface ship.» Problem aspects of the “hydroacoustic station - surface ship” system with antennas located in the ship hull]. Publ. Dmytryya Buraho, K. 424 p.
4. Derepa, A. V., Leyko, A. H. and Melenko, Yu. Ya. (2016), «Osnovy voenno-tekhnycheskykh yssledovanyy. Teoryya y prylozhenyya. T. 8. Kompleksnaya systema «hydroakustycheskoye vooruzhenye – nadvodnyy korabl». Problemnyye aspekty systemy «hydroakustycheskaya stantsyya – nadvodnyy korabl» s antennamy peremennoy hlubyny» [Fundamentals of military technical research. Theory and applications. V. 8. The integrated system “hydroacoustic armament - surface ship”. Problem aspects of the “hydroacoustic station - surface ship” system with variable depth antennas]. Publ. Dmytryya Buraho, K. 400 p.
5. Lejko, A. G., and Drozdenko, A. I. (2018), «Izluchenie maksimal’noj akusticheskoj moshhnosti sistemami gidroakusticheskih preobrazovatelej s okruzhnoj poljarizaciej» [Radiation of maximum acoustic power by hydroacoustic transducer systems with peripheral polarization]. Mіkrosystems, elektronіcs and acoustic. K. T. 23, No 1. Pp. 58-65.
6. Didkovs’kyj, V. S., Poroshyn, S. M., Lejko, O. H., Lejko, N. O., and Drozdenko, O. I. (2013), «Konstruyuvannya elektroakustychnyx pryladiv i system dlya mul»tymedijnyx akustychnyx texnolohij» [Designing of electroacoustic devices and systems for multimedia acoustic technologies]. Amelyanchyk, Xarkiv. 390 p.
7. Bogorodskogyi, V. V. (1983), «Podvodnye jelektroakusticheskie preobrazovateli. Raschet i proektirovanie: spravochnik» [Underwater electroacoustic transducers. Calculation and design]. Sudostroenie, Leningrad. 315 p.
8. Evtjutov, A. P., Kolesnikov, A. E. and Korepin, E. A. (1988), «Spravochnik po gidroakustike» [Handbook of hydroacoustics]. Sudostroenie, Leningrad. 344 p.
9. Smaryshev, M. D. and Dobrovol’skij, Ju. Ju. (1984), «Spravochnik po raschetu napravlennyh svojstv gidroakusticheskih antenn» [Handbook for the calculation of directional properties of hydroacoustic antennas]. Sudostroenie, Leningrad. 304 p.
10. Aronov, B. S. (2006). Experimental methods for investigating the acoustical interaction between transducers, J. Acoust. Soc. Am. 119 (6), 3822–3830.
11. Aronov, B. S. (2003). Energy analysis of a piezoelectric body under nonuniform deformation, J. Acoust. Soc. Am. 113, 2638–2646.
12. Aronov, B. S. (2005). The energy method for analyzing the piezoelectric electroacoustic transducers, J. Acoust. Soc. Am. 117, 210–220.
13. Grinchenko, V. T., Vovk, I. V. and Macipura, V. T. (2013), «Volnovye zadachi akustiki» [Wave acoustics tasks]. Interservis, K. 572 p.
14. Derepa, A. V., etc. (2018), «Svojstva cilindricheskih gidroakusticheskih preobrazovatelej s vnutrennimi podatlivymi jekranami» [Properties of cylindrical sonar transducers with fl exible internal screens]. Weapons and military equipment. K. No. 4(20). Pp. 40–46.
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