Weak Coupling Between Electromagnetic and Structural Models for Electrical Machines

Author

Rainer, Siegfried ; Bíró, Oszkar ; Weilharter, Bernhard ; Stermecki, Andrej

Author_Institution

Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol., Graz, Austria

Volume

46

Issue

8

fYear

2010

Firstpage

2807

Lastpage

2810

Abstract

A weak coupling technique for an electromagnetic and a structural dynamic model formulated by the finite element method (FEM) is presented. The algorithm is able to estimate higher force harmonics with high accuracy and is hence suitable for acoustic simulations of electrical machines. High computational efforts using conventional algorithms are reduced significantly and accuracy is even enhanced. The algorithm is applied to compute vibrations of a skewed induction machine.

Keywords

asynchronous machines; electromagnetic coupling; finite element analysis; vibrations; FEM; electrical machines acoustic simulation; electromagnetic coupling; finite element method; skewed induction machine; structural dynamic model; vibrations computation; Acoustic noise; Computational modeling; Electromagnetic coupling; Electromagnetic forces; Electromagnetic modeling; Induction machines; Iron; Magnetic fields; Tensile stress; Vibrations; Acoustic noise; coupling; electric machines; transient analysis; vibrations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2010.2043827

Filename

5512871