Title :
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
fDate :
5/1/1996 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
