Calculation of the Static Forces Among the Permanent Magnets in a Halbach Array

Author

Rovers, J.M.M. ; Jansen, J.W. ; Lomonova, E.A. ; Ronde, M.J.C.

Author_Institution

Dept. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands

Volume

45

Issue

10

fYear

2009

Firstpage

4372

Lastpage

4375

Abstract

This paper concerns the analysis of the interaction force among the permanent magnets (PM) in a Halbach array as used in a moving-magnet planar actuator. The goal is to analyze the magnitude of these forces and to what extent the mechanical construction of an aluminium plate, on which the permanent magnets are mounted, is deformed by the interaction force among the permanent magnets. The interaction forces are obtained from analytical models which have been verified with an electromagnetic Finite Element Method (FEM) simulation. These results are used in a mechanical FEM simulation to determine the deformation of the magnet assembly.

Keywords

deformation; electromagnetic actuators; finite element analysis; permanent magnets; Halbach array; aluminium plate; deformation; electromagnetic finite element method; interaction force; mechanical construction; moving-magnet planar actuator; permanent magnets; static forces; Deformation of mechanical structure; Halbach array; magnetic force;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2021860

Filename

5257215