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Information × Registration Number 0214U002567, 0110U000286 , R & D reports Title Methods of identification of the sound generation mechanisms by flux inside deformable systems with use of characteristics of sound signals. popup.stage_title Head Grinchenko Victor Timopheevich, Registration Date 16-01-2014 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 A mathematical model for sound signals spectral characteristics detection has been offered for the complex shape channals inside of which the signals are generated. The model verification has been tested on two-dimensional fluid flow inside the domain with two sound buffles which have identical geometrical parameters. The structure of vortex flux in such flows has been interrogated. It has been revealed that the model adequatelly reconstracts particularities of the sound generation process for the system with feedback. Valuations have been done for the wide range of the Raynold's number changing. Sound field calculations have also been held for moving bodies, in the open space, with variation of their geometry . The method for impedance characteristics study of deformed elements of the acoustical systems has been preparated for the case of the inherent differences of the sensor material physical characteristics and materials of the shape where sound siganl are registered. The method has been adapted for sensor's requirements elaborating which are used for sound registration on human body. Satisfactory fit of numerical and experimental dependences of the connected transfer function for loads, which correspond to weight of the real physical noise sensors, attests operational capability of the chosen impedance properies model for chest. Product Description popup.authors Артем'єв Олександр Михайлович Борісюк Андрій Олексійович Вовк Ігор Володимирович Грінченко Віктор Тимофійовичч Лук'янов Петро Володимирович Макаренков Анатолій Павлович Макаренкова Анастасія Анатоліївна Малюга Володимир Сергійович Олійник Валерій Никифорович popup.nrat_date 2020-04-02 Close