Analysis of Axial Magnetic Force Distribution Due to the Axial Clearance for Electrical Rotating Machine

Author

Kim, Ki-Chan ; Koo, Dae-Hyun ; Lee, Ju

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2546

Lastpage

2548

Abstract

This paper presents the study on the analysis method of axial force for general rotating machine having radial air-gap flux by axisymmetric 2-D finite element method (FEM). Axial force due to the gap in axial direction between stator and rotor causes damage to bearings, shaft and coupler. In order to use 2-D FEM, we propose some assumptions and a modeling method. The experiment by using measuring instrument on the shaft end is performed for the verification of analysis method. The minimizing axial force is also suggested by adjusting radial duct in the machine

Keywords

electric machines; finite element analysis; magnetic forces; rotors; stators; 2D finite element method; FEM; axial clearance; axial magnetic force distribution; bearings; coupler; electrical rotating machine; radial air-gap flux; rotors; shaft; stator; Air gaps; Finite element methods; Instruments; Magnetic analysis; Magnetic forces; Performance analysis; Performance evaluation; Rotating machines; Shafts; Stators; Axial magnetic force; duct array; finite element method (FEM); reluctance torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893303

Filename

4202804