Critical-current density analysis of force and stability in maglev systems

Alvaro Sanchez, Nuria Del-Valle, Carles Navau, Du Xing Chen

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14 Citations (Scopus)

Abstract

The levitation force and stability in a superconductor-magnet system with maglev geometry are studied as function of the critical-current density of the superconductor, from a realistic model based on minimizing the magnetic energy. Results show that although the force is an increasing function of the critical-current density Jc, an overhigh Jc may result in instability. Therefore, the optimum critical-current density in the superconductor for a given levitation system should be an intermediate value which depends on the system dimensions and the magnetic field of the magnet. © 2009 American Institute of Physics.
Original languageEnglish
Article number023906
JournalJournal of Applied Physics
Volume105
Issue number2
DOIs
Publication statusPublished - 9 Feb 2009

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