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Inverse problem of nonlinear acoustics: Synthesizing intense signals to intensify the thermal and radiation action of ultrasound
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2016 (English)In: Acoustical Physics, ISSN 1063-7710, E-ISSN 1562-6865, Vol. 62, no 4, 418-428 p.Article in journal (Refereed) Published
Abstract [en]

Inverse problems of nonlinear acoustics have important applied significance. On the one hand, they are necessary for nonlinear diagnostics of media, materials, manufactured articles, building units, and biological and geological structures. On the other hand, they are needed for creating devices that ensure optimal action of acoustic radiation on a target. However, despite the many promising applications, this direction remains underdeveloped, especially for strongly distorted high-intensity waves containing shock fronts. An example of such an inverse problem is synthesis of the spatiotemporal structure of a field in a radiating system that ensures the highest possible energy density in the focal region. This problem is also related to the urgent problems of localizing wave energy and the theory of strongly nonlinear waves. Below we analyze some quite general and simple inverse nonlinear problems. © 2016, Pleiades Publishing, Ltd.

Place, publisher, year, edition, pages
Maik Nauka/Interperiodica, 2016. Vol. 62, no 4, 418-428 p.
Keyword [en]
Acoustics; Biological materials; Focusing; Plasma diagnostics; Shock waves; Ultrasonics; Wave energy conversion, Acoustic radiation; Geological structures; Non-linear acoustics; Nonlinear diagnostics; Nonlinear problems; nonlinearity; Spatio-temporal structures; Strongly nonlinear, Inverse problems
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:bth-12986DOI: 10.1134/S1063771016040163ScopusID: 2-s2.0-84979257025OAI: oai:DiVA.org:bth-12986DiVA: diva2:956798
Available from: 2016-08-31 Created: 2016-08-31 Last updated: 2016-09-05Bibliographically approved

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Rudenko, Oleg
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