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Enhancements of energy and Q-factor of a nonlinear resonator with increase in its losses
Responsible organisation
2002 (English)In: Doklady Akademii Nauk, ISSN 0869-5652, Vol. 383, no 1, 330-333 p.Article in journal (Refereed) PublishedAlternative title
Förstärkning av energi och Q-faktor hos en ickelinjär resonator genom ökning av dess förluster (Swedish)
Abstract [en]

A phenomenon that is paradoxical at first sight is studied: an appropriately-organized energy outflow from a resonator cavity results not in the attenuation of nonlinear vibrations but in their noticeable enhancement. An increase in the resonator Q-factor and in the energy accumulated in it is well pronounced when the frequencies of the higher harmonics generated in a nonlinear medium are close to the natural frequencies of the resonator. An important example of a nonlinear system with the necessary properties is an acoustic resonator with selective losses.

Abstract [sv]

Det paradoxala beteendet att en resonators enegriinnehåll och Q-faktor kan öka när dess dämpning ökar beskrivs.

Place, publisher, year, edition, pages
MAIK Nauka/Interperiodica Publishing, Russia , 2002. Vol. 383, no 1, 330-333 p.
Keyword [en]
nonlinear acoustics, resonator, Q-factor increase, acoustic resonance
National Category
Applied Mechanics
URN: urn:nbn:se:bth-10189Local ID: diva2:838260
Available from: 2012-09-18 Created: 2002-09-03 Last updated: 2015-06-30Bibliographically approved

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Rudenko, OlegHedberg, Claes
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