Dynamic rotor eccentricity analysis by coupling electromagnetic and structural time stepping FEM

Author

Ha, K.H. ; Hong, J.P.

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ., Kyungnam, South Korea

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3452

Lastpage

3455

Abstract

The influence of unbalance forces in rotary electric machines on the rotor vibration behavior is investigated in this paper. The dynamic response of a Switched Reluctance motor (SRM) rotor is analyzed by the coupled structural and electromagnetic Finite Element Method (FEM) in the transient state solved in a step-by-step procedure with respect to time. The proposed procedure allows solving the coupled field. The dynamic behavior of rotor caused by the coupled mechanical and magnetic forces is presented, according to the variation of unbalance mass and bearing stiffness

Keywords

finite element analysis; machine theory; magnetic forces; reluctance motors; rotors; vibrations; bearing stiffness; coupled field; dynamic response; electromagnetic FEM; magnetic force; mechanical force; rotary electric machine; rotor eccentricity; rotor vibration; structural FEM; switched reluctance motor; time stepping finite element method; transient state; unbalance force; unbalance mass; Electric machines; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic forces; Finite element methods; Magnetic analysis; Reluctance machines; Reluctance motors; Rotors; Vibrations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952635

Filename

952635