Dynamic stress in magnetic actuator computed by coupled structural and electromagnetic finite elements

Author

Brauer, J.R. ; Ruehl, J.J. ; Juds, M.A. ; Vander Heiden, M.J. ; Arkadan, A.A.

Author_Institution

MacNeal-Schwendler Corp., Milwaukee, WI, USA

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1046

Lastpage

1049

Abstract

Mechanical stress versus time is computed by coupled electromagnetic and structural finite element analyses. The theory of the stress computations, including Maxwell stress tensors, is presented. The method is applied to an actuator driven by a step AC voltage. After verifying the calculated current and motion, the computed stress distribution is shown to depend on the placement of the nonlinear springs moved by the actuator

Keywords

AC machines; electric actuators; electric machine analysis computing; electromagnetic devices; electromagnetic fields; finite element analysis; machine theory; software packages; stress analysis; structural engineering computing; tensors; MSC/EMAS software; Maxwell stress tensors; dynamic stress distribution; electromagnetic actuators; finite element analyses; nonlinear springs; step AC voltage; structural analysis; Actuators; Distributed computing; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic forces; Finite element methods; Magnetic analysis; Magnetic domains; Nonlinear equations; Springs; Tensile stress; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497420

Filename

497420