Finite element analysis studies forces on linear induction motors in superconducting magnetic levitation vehicles, suggesting design improvements.
Superconducting magnetic levitation (SML) vehicles use a levitation technology based on the diamagnetic property of Y-Ba-Cu-O blocks and the magnetic field of Nd-Fe-B magnets. Brazilian SML project, MagLev-Cobra uses for the propulsion a short primary linear induction motor (LIM) with a squirrel cage secondary type. SupraTrans 2, the Germany MagLev vehicle, uses a short primary motor with secondary with copper plate and back-iron. Both motors assembly contribute to increase the levitation force. Brazilian tests with one levitating module on a 12 m track have shown a variation of the levitation height with the motor loading. In this paper, 2D - 3D finite element analysis will be used to study lateral, levitation and traction forces. Simulation and experimental results will be compared.
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Oliveira et al. (2015) studied this question.
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