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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2003, Volume 44, Issue 6, Pages 49–55
(Mi pmtf2557)
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Random oscillations of an antiphase-excited aeroelastic system with synchronization
A. L. Tukmakov Institute of Mechanics and Mechanical Engineering, Kazan' Scientific Center, Russian Academy of Sciences, Kazan', 420111
Abstract:
We examine synchronization of the oscillatory motion of thin elastic cylindrical plates forming the walls of a channel filled by a gas. The gas motion in the channel is described by a system of Navier–Stokes equations solved by the MacCormack method of second-order accuracy. The motion of the channel walls is described by a system of dynamic, geometrically nonlinear equations of the thin-shell theory; this system is solved by the finite difference method. Kinematic and dynamic contact conditions are set at the interface between the media. By means of a numerical experiment, possible scenarios of the transition of the aeroelastic system to in-phase oscillations were identified, and the regime of random oscillations in the system with synchronization under antiphase external excitation was found.
Keywords:
channel with elastic walls, oscillation characteristics, numerical computations.
Received: 08.04.2003
Citation:
A. L. Tukmakov, “Random oscillations of an antiphase-excited aeroelastic system with synchronization”, Prikl. Mekh. Tekh. Fiz., 44:6 (2003), 49–55; J. Appl. Mech. Tech. Phys., 44:6 (2003), 790–795
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https://www.mathnet.ru/eng/pmtf2557 https://www.mathnet.ru/eng/pmtf/v44/i6/p49
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