Local Magneto-Mechanical Coupling in Electrical Machines

Author

Belahcen, A. ; Arkkio, A.

Author_Institution

Dept. of Electr. & Commun. Eng., Helsinki Univ. of Technol., Espoo

fYear

0

fDate

0-0 0

Firstpage

389

Lastpage

389

Abstract

Original results of numerical simulations of an induction machine with local magneto-mechanically coupled FE model are presented. The coupling is implemented locally as a stress dependency of the magnetization properties of lamination. The mechanical load is due to the magnetic forces and shrink fitting of the core into the frame. Large local stresses are caused. They reduce the magnetization of lamination and increase the stator current. The resistive power losses increase and add to increased iron losses due to stresses. The efficiency of the machine is reduced

Keywords

asynchronous machines; finite element analysis; laminations; losses; magnetic forces; magnetisation; magnetomechanical effects; shrink fitting; stators; FE model; core; electrical machines; induction machine; iron losses; lamination; magnetic forces; magnetization properties; magneto-mechanical coupling; mechanical load; resistive power losses; shrink fitting; stator current; stress; Couplings; Induction machines; Iron; Lamination; Magnetic forces; Magnetic properties; Magnetization; Numerical simulation; Stator cores; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1633179

Filename

1633179