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Всероссийская конференция "Новые математические модели механики сплошных сред: построение и изучение", приуроченная к 90-летию академика Л. В. Овсянникова

Новосибирск, 23-28 апреля 2009 г.

Тезисы докладов


Целевые функции и управляющие параметры оптимизации формы источника

Юрковский В.С.

Институт Гидродинамики имени Лаврентьева СО РАН (Новосибирск)

The work is devoted to the timely investigation in the field of acoustics. The aim is to develop mathematical models of vibroseismic sources for optimization of the efficiency of such sources as they are used in modern equipment for acoustic crack detection, in geophysical engineering and in geological survey. The dependence of the radiation directivity of the acoustic waves generated on the open surface of the source, located inside conic-shaped horn was studied in frame of the acoustic approximation as a function of the shape and of the geometrical parameters of the source.

Graphical and analytical dependencies of radiation intensity of "source-horn" oscillating system upon horn geometry were obtained. Optimization principles were worked out to localize source radiation in effective angle. In frame of formed mathematical model, optimum geometrical values of the horn were determined. These values provides the most effective operating mode of the "source-horn" acoustic system in terms of localizing radiation of the source in angle, specified by technical applications of the vibroseismic systems.

Примечание. Тезисы докладов публикуются в авторской редакции



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