Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
 Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936

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M. S. Artem'eva and D. Yu. Skubov, "Magnetic suspension in an alternating current field," Mech. Solids. 40 (4), 1-12 (2005)
Year 2005 Volume 40 Number 4 Pages 1-12
Title Magnetic suspension in an alternating current field
Author(s) M. S. Artem'eva (St. Petersburg)
D. Yu. Skubov (St. Petersburg)
Abstract It is known that rapidly alternating forces acting on a mechanical or electromechanical system can substantially affect its dynamic properties, e.g., produce new equilibria, alter the properties of existing equilibria, cause self-induced vibrations, etc. We show how the action of rapidly oscillating electromagnetic forces can be used to devise a new passive magnetic suspension of inductor type. In the simplest case, the suspension is a system of two rings with a common vertical axis, one of the rings being fixed and the other being free. The rings are powered with alternating current, which gives rise to stable equilibria in the gravitational field. Under certain conditions, such a suspension can serve as an alternative to a superconducting suspension in a constant magnetic field, for which the stability of the equilibrium is known as the "magnetic potential well" effect [1].
References
1.  V. V. Kozarez, Dynamical Systems of Magnetically Interacting Free Bodies [in Russian], Naukova Dumka, Kiev, 1981.
2.  N. A. Reimers and K. Sh. Khodzhaev, "Averaging of quasilinear systems with several fast variables," Differ. Uravn. [Differential Equations], Vol. 14, No. 8, pp. 1388-1399, 1978.
Received 05 April 2002
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