Journal of Siberian Federal University. Engineering & Technologies / A New Approach to Analysis of the Properties of Disordered Structures in Hydrodynamic Acoustics as Supplement to Technology and Detection Theory

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Issue
Journal of Siberian Federal University. Engineering & Technologies. 2021 14 (3)
Authors
Starodubtsev, Pavel A.; Starodubtsev, Evgeny P.; Alifanov, Roman N.; Dorofeev, Grigory V.
Contact information
Starodubtsev, Pavel A.: Pacific Higher Naval School named after S. O. Makarov Vladivostok, Russian Federation; ; Starodubtsev, Evgeny P.: Pacific Higher Naval School Vladivostok, Russian Federation; Alifanov, Roman N.: Pacific Higher Naval School Vladivostok, Russian Federation; Dorofeev, Grigory V.: Pacific Higher Naval School named after S. O. Makarov Vladivostok, Russian Federation
Keywords
hydrodynamic acoustics; attractor; mathematical concept of a fractal; detection theory; be involved to help him
Abstract

The article presents the results of the analysis of the properties of disordered structures in hydrodynamic acoustics, associated with the process of detecting physical phenomena and marine objects based on the results of their mechanical impact on the marine environment, in which acoustic vibrations propagate. If vortices, attractors, fractals arise as a result of complex interactions of forces of nature (upwellings, seiches, Coriolis forces, currents, convection flows, rotation of the Earth) and are essentially mechanical effects on the environment of formation and propagation of an acoustic field, then mechanical sources of sound introduced into the hydrosphere (water) should repeat fractal iterations on a smaller scale at the sound field level. Recognizing the equations of hydrodynamics (the equation of motion, the equation of continuity, and the equation of state) as the fundamental equations of hydroacoustics, the nonlinearity of these equations is proposed to be considered the theory of the hydroacoustic field as nonlinear, and the linearity of the processes in this study is considered a special case. The principle of superposition also becomes a special case, and the Fourier transform, remaining necessary, loses its sufficiency. Fractal analysis in combination with wavelet analysis should be involved to help him

Pages
306–315
DOI
10.17516/1999-494X-0310
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/141280

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