Efficient force calculations based on continuum sensitivity analysis

Author

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

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

1404

Lastpage

1407

Abstract

Using continuum design sensitivity analysis (CDSA), in conjunction with the virtual work principle, equations have been derived for calculating forces without the need to solve the adjoint system. The resultant expressions are similar to the Maxwell stress tensor, but have the important advantage of the integration taking place on the surface of material rather than in the air outside. Implementation of the scheme leads to efficient calculations and improved accuracy.

Keywords

computational electromagnetics; electromagnetic forces; finite element analysis; integration; sensitivity analysis; tensors; Maxwell stress tensor; continuum design sensitivity analysis; electromagnetic force calculation; finite elements; virtual work principle; Accuracy; Computer science; Finite element methods; Frequency; Magnetic fields; Magnetic materials; Maxwell equations; Permanent magnets; Sensitivity analysis; Tensile stress; Electromagnetic force calculation; finite elements; sensitivity analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.844343

Filename

1430870