Weak coupling of magnetic and vibrational analysis using local forces

Author

Delaere, Koen ; Sas, Paul ; Belmans, Ronnie ; Hameyer, Kay

Author_Institution

Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium

fYear

1999

fDate

36281

Firstpage

514

Lastpage

516

Abstract

A weak coupling between magnetostatic and elasticity equations is derived from energy considerations for electric machines. The coupling term results directly into a finite element expression for the nodal electromagnetic forces, which can be used as source terms for an elasticity or vibration analysis. The relative contribution of the stator´s modal shapes in the deformation excited by this force distribution is calculated. As an example, the coupling is used to analyse the vibrational behaviour of a 6/4 switched reluctance machine

Keywords

electromagnetic fields; electromagnetic forces; finite element analysis; machine theory; magnetostatics; modal analysis; reluctance machines; stators; vibrations; 6/4 switched reluctance machine; elasticity equations; electric machines; finite element expression; force distribution; magnetostatic equations; nodal electromagnetic forces; stator modal shapes; vibrational behaviour; weak coupling; Elasticity; Electric machines; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic forces; Equations; Finite element methods; Magnetic analysis; Magnetoelasticity; Magnetostatics;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 1999. International Conference IEMD '99

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5293-9

Type

conf

DOI

10.1109/IEMDC.1999.769162

Filename

769162