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Title of Article

ACOUSTIC EMISSION OF DISCRETE SOURCES IN ANISOTROPIC MEDIUM


Issue
6
Date
2010

Article type
scientific article
UDC
534.23
Pages
56-58
Keywords
moving dipoles, anisotropic medium, acoustic emission, phase incursions, directional pattern


Authors
Bubnov Evgeniy Yakovlevich
Volzhskaya gosudarstvennaya akademiya vodnogo transporta, Nizhniy Novgorod


Abstract
Using the example of two moving dipoles, the problem of the acoustic emission of a distributed source in an anisotropic medium has been considered. Analytical expressions for the acoustic pressure as a function of travel speed and dipole orientation in reference to the speed vector have been obtained; pressure amplitude angular distributions have been plotted. The medium anisotropy has been shown to affect essentially the acoustic emission characteristics due to additional phase delays between oscillators.

File (in Russian)