Application of 3D eddy current analysis on magnetically levitated vehicles

Author

Fukumoto, H. ; Kameoka, Y. ; Yoshioka, K. ; Takizawa, T. ; Kobayashi, T.

Author_Institution

Hitachi, Ltd., Japan

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1878

Lastpage

1881

Abstract

The eddy currents induced on the superconducting magnet (SCM) vessels of magnetically levitated vehicles (MAGLEV) have been analyzed. A 3D eddy current analysis code, based on a finite-element method (FEM) with thin shell approximation, is developed and verified through a mock-up SCM experiment. Through a coupled electromagnetic and mechanical analysis under SCM vibration, a SCM structure with low-resistivity material coating on the inner vessel of SCM is found to be suitable for the significant reduction of helium evaporation due to eddy current loss

Keywords

eddy current losses; eddy currents; finite element analysis; magnetic levitation; superconducting magnets; vehicles; 3D eddy current analysis; He evaporation reduction; MAGLEV; coupled EM mechanical analysis; eddy current loss; finite-element method; inner vessel; low-resistivity material coating; magnetically levitated vehicles; superconducting magnet vessels; thin shell approximation; Eddy currents; Electromagnetic analysis; Electromagnetic coupling; Finite element methods; Magnetic analysis; Magnetic levitation; Magnetic materials; Superconducting magnets; Vehicles; Vibrations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250773

Filename

250773