Effect of periodic changes in the shape of a superconducting body on its dynamics in a noncontact magnetic suspension

Autor:	S. I. Kuznetsov, Yu. M. Urman, A. O. Mal’khanov
Rok vydání:	2008
Předmět:	Vibration Physics Physics and Astronomy (miscellaneous) Condensed matter physics media_common.quotation_subject Dynamics (mechanics) Electromagnetic suspension Inertia Suspension (vehicle) Instability Excitation media_common Magnetic field
Zdroj:	Technical Physics. 53:1529-1535
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784208120013
Popis:	The effect of periodic variations of the shape of a homogeneous superconductor on its dynamics in an axisymmetric magnetic field produced by permanent magnets is studied in the case in which the gravity and inertia forces are directed along the axis of the suspension. The shape of the body varies in accordance with a harmonic law from an oblong to an oblate ellipsoid. The dependences of the forces and moments acting on the body on its position in the suspension and shape are obtained. It is shown that the periodic variation of the shape is responsible for excitation of vibrations and may lead to instability of the body. Calculations are performed in the quasi-stationary approximation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25e869e927aeebca4568825bb4844bfb https://doi.org/10.1134/s1063784208120013 Zobrazit plný text záznamu Plný text ve formátu PDF