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Zhurnal Tekhnicheskoi Fiziki, 2021, Volume 91, Issue 9, Pages 1305–1315
DOI: https://doi.org/10.21883/JTF.2021.09.51208.21-21 (Mi jtf4932) 		 
This article is cited in 2 scientific papers (total in 2 papers)

Theoretical and Mathematical Physics

The effects of amplitude-dependent internal friction in a low-frequency annealed polycrystalline copper rod resonator

V. E. Nazarova, A. B. Kolpakovb

a Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod
b National Research Lobachevsky State University of Nizhny Novgorod
Full-text PDF (831 kB) Citations (2)
DOI: https://doi.org/10.21883/JTF.2021.09.51208.21-21
Abstract: The effects of amplitude-dependent internal friction in a low-frequency rod resonator made of annealed polycrystalline copper are studied experimentally and theoretically. We report the results of measurements of nonlinear losses and resonance frequency shift in the first three longitudinal resonator modes in the frequency range from 2 to 11 kHz. The observed effects are described analytically using the rheological model and the equation of state of a microinhomogeneous medium with hysteretic loss saturation and relaxation of its viscoelastic defects. The values of effective parameters of the hysteretic nonlinearity of the annealed copper sample and their frequency dependences are determined by comparing the experimental and analytical results.
Keywords: amplitude-dependent internal friction, saturation of hysteresis losses, resonator.
Funding agency Grant number
Russian Foundation for Basic Research 20-02-00215А
This study was supported by the Russian Foundation for Basic Research, project no. 20-02-00215A.
Received: 01.02.2021
Revised: 16.04.2021
Accepted: 17.04.2021
English version:
Technical Physics, 2021, Volume 66, Issue 12, Pages 1257–1267
DOI: https://doi.org/10.1134/S1063784221090140
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. E. Nazarov, A. B. Kolpakov, “The effects of amplitude-dependent internal friction in a low-frequency annealed polycrystalline copper rod resonator”, Zhurnal Tekhnicheskoi Fiziki, 91:9 (2021), 1305–1315; Tech. Phys., 66:12 (2021), 1257–1267
Citation in format AMSBIB
\Bibitem{NazKol21}
\by V. E. Nazarov, A.~B.~Kolpakov
\paper The effects of amplitude-dependent internal friction in a low-frequency annealed polycrystalline copper rod resonator
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2021
\vol 91
\issue 9
\pages 1305--1315
\mathnet{http://mi.mathnet.ru/jtf4932}
\crossref{https://doi.org/10.21883/JTF.2021.09.51208.21-21}
\elib{https://elibrary.ru/item.asp?id=46470746}
\transl
\jour Tech. Phys.
\yr 2021
\vol 66
\issue 12
\pages 1257--1267
\crossref{https://doi.org/10.1134/S1063784221090140}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85124603655}
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    • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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