Title :
Nonlinear shape design sensitivity analysis of magnetostatic problems using boundary element method
Author :
Koh, Chang Seop ; Mohammed, Osama A. ; Hahn, Song-Yop
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
A design sensitivity analysis is extended to cover the nonlinear magnetostatic problems. The formula is derived using material derivative as boundary integrals of the state and adjoint variables over the deformable boundary. A solution scheme for nonlinear state and adjoint equations using boundary element method is also presented to get accurate sensitivity coefficients. And a normalizing scheme for the pointwise sensitivity coefficients are proposed to avoid zig-zag shapes during optimization
Keywords :
boundary integral equations; boundary-elements methods; magnetostatics; sensitivity analysis; adjoint variables; boundary element method; boundary integrals; deformable boundary; design sensitivity analysis; nonlinear magnetostatic problems; nonlinear shape; normalizing scheme; pointwise sensitivity coefficients; sensitivity coefficients; Artificial intelligence; Boundary element methods; Design engineering; Design methodology; Finite element methods; Integral equations; Magnetic materials; Magnetostatics; Sensitivity analysis; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
