A novel scheme for material updating in source distribution optimization of magnetic devices using sensitivity analysis

Author

Kim, Dong-Hun ; Sykulski, Jan K. ; Lowther, David A.

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Daegu, South Korea

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1752

Lastpage

1755

Abstract

A novel material updating scheme, which does not require intermediate states of a material used, is presented for source distribution optimization problems. A mutation factor to determine a degree of topological change in the next design stage on the basis of a current layout accelerates the convergence of an objective function. Easy implementation and fast convergence of the scheme are verified using two MRI design problems where current and permanent magnet distributions have been optimized, respectively.

Keywords

magnetic devices; magnetic materials; optimisation; sensitivity analysis; MRI design problems; adjoint variable method; current distribution; design sensitivity; intermediate state; magnetic devices; material updating scheme; mutation factor; permanent magnet distribution; sensitivity analysis; source distribution optimization problems; topological change; topology optimization; Computer science; Convergence; Design optimization; Lagrangian functions; Magnetic devices; Magnetic materials; Magnetic resonance imaging; Magnetostatics; Permeability; Sensitivity analysis; Adjoint variable method; design sensitivity; topology optimization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846036

Filename

1430957