Parametric Analysis of Nonlinear Oscillations of the “Rotor–Weakly Conductive Viscous Fluid–Foundation” System under the Action of a Magnetic Field
Kydyrbekuly A. Zhauyt A. Ibrayev G.-G.A.
November 2023Multidisciplinary Digital Publishing Institute (MDPI)
Applied Sciences (Switzerland)
2023#13Issue 21
The generalized dynamic model of the rotor system, presented in this paper, is the first model that takes into account the interconnected oscillations of the “rotor–weakly conductive fluid–foundation” system under the action of parameters such as fluid and rotor motion, linear eccentricity, friction forces, foundation vibration and nonlinear characteristics of rolling bearings, as well as the action of a magnetic field on the fluid. Consistent equations of motion for the “rotor–weakly conductive fluid–foundation” system were derived and solved analytically. Forced and natural oscillations of the system were analyzed, and the distinctive features of the rotor system dynamics were revealed. The values of frequencies and amplitudes, which are one of the main factors determining the dynamic behavior of the system, were obtained and studied.
critical frequency , magnetic and electrohydrodynamics , moving foundation , natural oscillations , nonlinear oscillations , rotor , weakly conductive liquid
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Department of Mechanics, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Electronics and Robotics, Almaty University of Power Engineering and Telecommunications named after G. Daukeyev, Almaty, 050013, Kazakhstan
Department of Mechanics
Department of Electronics and Robotics
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