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Title of Article

DISBALANCE INFLUENCE ON NONLINEAR DYNAMICS OF A VERTICAL ROTOR SUSPENDED ON ELECTROMAGNETIC BEARINGS


Issue
4
Date
 2009

Article type
 scientific article
UDC
534.01
Pages
110-114
Keywords
dynamics, disbalance, mathematical model, nonlinear system, rotor, sub-harmonic vibration, stability, frequency, electromagnetic bearing


Authors
Mitenkov F.M.
Opytnoe konstruktorskoe byuro mashinostroeniya im. I.I. Afrikantova

Znyshev V.V.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Kiryushina E.V.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Kodochigov N.G.
Opytnoe konstruktorskoe byuro mashinostroeniya im. I.I. Afrikantova

Nikolaev M.Ya.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Ovchinnikov V.F.
NII mekhaniki Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo


Abstract
Some peculiarities have been investigated of acceleration dynamics of an electromagnetically suspended rotor in the range of nonlinear resonances caused by the excitation of sub-harmonic vibrations. It has been shown that the rotor motion parameters in two mutually orthogonal planes may not coincide quantitatively; and when the disbalance of the rotor exceeds some threshold value its vibration level may fall abruptly.

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