Title :
Performance derivative calculations and optimization process
Author :
Gitosusastro, S. ; Coulomb, J.l. ; Sabonnadiere, J.C.
Author_Institution :
Lab. d´´Electrotech. de Grenoble, ENSIEG, Saint Martin d´´Heres, France
fDate :
7/1/1989 12:00:00 AM
Abstract :
The calculation of the sensitivity versus a geometric or physical parameter and its use in an optimization process are presented. The 2-D finite-element method is used in the magnetic field calculation. The quasiNewton method is used to determine the direction of minimization, and the constraints of upper and lower bounds of parameters are treated by the penalty function. A cubic approximation method is used in the unidimensional minimization. Minimization of the current density (J c) while keeping the force desired for a relay model is presented as an example
Keywords :
electromagnetic field theory; finite element analysis; optimisation; 2-D finite-element method; cubic approximation method; current density; geometric parameter; lower bounds; magnetic field calculation; minimization; optimization process; penalty function; performance derivative calculations; physical parameter; quasiNewton method; relay model; sensitivity; Current density; Design optimization; Finite element methods; Magnetic fields; Magnetic flux; Magnetostatics; Minimization; Sensitivity analysis; Shape; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
