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This article is cited in 3 scientific papers (total in 3 papers)
MECHANICS
Nonlinear modal interaction between longitudinal and bending vibrations of a beam resonator under periodic thermal loading
N. F. Morozovab, D. A. Indeitsevbc, A. V. Lukinc, I. A. Popovc, L. V. Shtukinbc a St Petersburg State University, 7–9, Universitetskaya nab., St Petersburg, 199034, Russian Federation
b Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences, 61, V. O., Bolshoi pr., St Petersburg, 199178, Russian Federation
c Peter the Great St Petersburg Polytechnic University,
29, ul. Polytechnicheskaya, St Petersburg, 195251, Russian Federation
Abstract:
The paper investigates the nonlinear modal interaction of longitudinal and bending vibrations of a beam resonator under periodic thermal loading. The mode of parametric oscillations is investigated under conditions of internal multiple resonance between some flexural and longitudinal forms of free oscillations of the resonator. The possibility of generation in the system of the longitudinal-bending mode was found, the frequency of the slow envelope of which essentially depends on the parameter of the internal frequency detuning, which is directly related to the magnitude of external disturbances subject to high-precision measurement.
Keywords:
nonlinear dynamics, parametric oscillations, Bernoulli — Euler beam, modal interaction, beats.
Received: 18.10.2021 Revised: 26.11.2021 Accepted: 02.12.2021
Citation:
N. F. Morozov, D. A. Indeitsev, A. V. Lukin, I. A. Popov, L. V. Shtukin, “Nonlinear modal interaction between longitudinal and bending vibrations of a beam resonator under periodic thermal loading”, Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 9:2 (2022), 317–337; Vestn. St. Petersbg. Univ., Math., 9:2 (2022), 317–337
Linking options:
https://www.mathnet.ru/eng/vspua12 https://www.mathnet.ru/eng/vspua/v9/i2/p317
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