The application of linear Halbach array to eddy current rail brake system

Author

Jang, Seok-Myeong ; Jeong, Sang-Sub ; Cha, Sang-Do

Author_Institution

Dept. of Electr. Eng., Chungnam Nat. Univ., Taejon, South Korea

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2627

Lastpage

2629

Abstract

This paper proposes two kinds of eddy current brakes with permanent magnet, One consists of hexahedron shape of a segmented permanent magnet and iron core (et seq. iron core-PM array). The other is composed of only a segmented permanent magnet (et seq. Halbach array). We use a finite element method to compute the magneto static field. Also, we use the Galerkin-FEM with linear interpolation function may oscillate between the adjacent nodes to calculate the braking and attraction force. The advantages of the Halbach array compared with the iron core-PM array are discussed

Keywords

Galerkin method; eddy current braking; finite element analysis; interpolation; permanent magnets; railways; Galerkin-FEM; attraction force; braking force; eddy current rail brake system; finite element method; iron core-PM array; linear Halbach array; linear interpolation function; magnetostatic field; segmented permanent magnet; Adhesives; Eddy currents; Finite element methods; Iron; Magnetic cores; Magnetic flux; Magnetic levitation; Magnetostatics; Permanent magnets; Rails;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951256

Filename

951256