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Mathematical Modelling
A simple mechanical model of turbulence
M. E. Semenovab, A. V. Tolkachevac, O. I. Kanishchevaa a Voronezh State University, Voronezh, Russian Federation
b State Research Institute of Aircraft Systems (GosNIIAS), Moscow, Russian Federation
c Voronezh State University of Forestry and Technologies named after G.F. Morozov, Voronezh, Russian Federation
(published under the terms of the Creative Commons Attribution 4.0 International License)
Abstract:
This work examines the control and stabilization problems of vibrations in a hierarchical chain of oscillators with hysteresis couplings. Hysteresis coupling is formalized within the Bouc–Wen phenomenological model. The mass, stiffness, and damping properties of the oscillators are set to follow a specific scaling rule and decrease exponentially along the chain, thus forming a hierarchy. The model is verified using Kolmogorov's hypotheses. To do this, energy spectra are constructed under hysteresis in coupling and without it at different amplitudes of the external excitation. As a result of computational experiments, it is shown that for a chain with hysteresis couplings at a high amplitude of excitation, the energy spectrum curve sufficiently corresponds to Kolmogorov's hypotheses. The amplitude-frequency characteristics of the system are calculated under hysteresis in coupling using the frequency scanning method. In numerical experiments, frequency ranges of external excitation are identified, which correspond to the chaotic behavior of oscillators and their synchronization.
Keywords:
turbulence, Kolmogorov's hypotheses, hysteresis, Bouc–Wen model.
Received: 15.05.2024 Accepted: 02.09.2024
Citation:
M. E. Semenov, A. V. Tolkachev, O. I. Kanishcheva, “A simple mechanical model of turbulence”, Vestnik SamU. Estestvenno-Nauchnaya Ser., 30:3 (2024), 63–75
Linking options:
https://www.mathnet.ru/eng/vsgu746 https://www.mathnet.ru/eng/vsgu/v30/i3/p63
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