Vibrations of rotating electrical machines due to magnetomechanical coupling and magnetostriction

Author

Belahcen, Anouar

Author_Institution

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

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

971

Lastpage

974

Abstract

This paper presents a method to calculate the vibrations of rotating electrical machines when the magnetostriction and the magnetomechanical coupling are of interest. The method is applied to two kinds of machines (cage induction and synchronous machine). The computations use dynamic numerical models for both magnetic and displacement fields in the machines. Moreover, the method is experimentally validated with a special device. The results of the computations and measurements show that the magnetostriction affects the vibrations of both machines, whereas the magnetomechanical coupling is considerable only in large stators

Keywords

asynchronous machines; magnetic fields; magnetostriction; synchronous machines; vibrations; cage induction machine; displacement fields; electrical machine vibration; magnetic fields; magnetomechanical coupling; magnetostriction; synchronous machine; Couplings; Equations; Magnetic analysis; Magnetic fields; Magnetic forces; Magnetoelasticity; Magnetostriction; Stator windings; Vibrations; Voltage; Electric machines; magnetomechanical coupling; magnetostriction; vibration;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871469

Filename

1608370