Numerical analysis of the contribution of magnetic forces and magnetostriction to the vibrations in induction machines

Author

Hilgert, T.G.D. ; Vandevelde, L. ; Melkebeek, J.A.A.

Author_Institution

Dept. of Electr. Energy, Ghent Univ.

Volume

1

Issue

1

fYear

2007

fDate

1/1/2007 12:00:00 AM

Firstpage

21

Lastpage

24

Abstract

A method is proposed to calculate the vibrations of magnetised electrical steel due to magnetic forces and magnetostriction. As an example, calculations have been carried out on two-pole and four-pole induction machines (IMs) with no load. If only the main components of the vibrations are considered, analysis of the results reveals that, in the case of the two-pole IM, the contributions of the magnetic forces and the magnetostriction add up, whereas, in the case of the four-pole IM, the respective contributions are subtracted. It is concluded that it is not justified to assume that magnetostriction in all cases will increase the vibrations of electromechanical devices

Keywords

asynchronous machines; finite element analysis; machine theory; magnetic forces; magnetostriction; modal analysis; vibrations; electromechanical device; finite element method; four-pole induction machines; induction machines; magnetic forces; magnetised electrical steel; magnetostriction; numerical analysis; structural modal analysis; two-pole induction machines; vibrations;

fLanguage

English

Journal_Title

Science, Measurement & Technology, IET

Publisher

iet

ISSN

1751-8822

Type

jour

DOI

10.1049/iet-smt:20060018

Filename

4105895