Stable magnetic levitation of soft ferromagnetic materials by flux pinning of bulk superconductors

Author

Ohsaki, H. ; Takabatake, M. ; Masada, E.

Author_Institution

Dept. of Electr. Eng., Tokyo Univ., Japan

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3454

Lastpage

3456

Abstract

We have investigated electromagnetic force characteristics of magnetic levitation systems consisting only of bulk superconductors and an iron rail, which enable a stable levitation even at a standstill without active control by a magnetic gradient in space. A two-dimensional finite element analysis was used to study the fundamental and general characteristics of the levitation of soft ferromagnetic materials by flux pinning of bulk superconductors and the dependence of the levitation characteristics on the direction of the pinning flux

Keywords

electromagnetic forces; ferromagnetic materials; finite element analysis; flux pinning; high-temperature superconductors; magnetic levitation; soft magnetic materials; HTSC; bulk superconductors; electromagnetic force characteristics; flux pinning; iron rail; magnetic flux distribution; magnetic gradient; pinning flux direction dependence; soft ferromagnetic materials; stable magnetic levitation; two-dimensional finite element analysis; Control systems; Electromagnetic forces; Force control; Iron; Magnetic flux; Magnetic levitation; Magnetic materials; Rails; Superconducting magnets; Superconductivity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.617975

Filename

617975