Vibration analysis considering higher harmonics of electromagnetic forces for rotating electric machines

Author

Sakamoto, Shigeru ; Hirata, Tosuke ; Kobayashi, Takashi ; Kajiwara, Kenzo

Author_Institution

Mech. Eng. Res. Lab., Hitachi Ltd., Ibaraki, Japan

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1662

Lastpage

1665

Abstract

A method is described to calculate vibration due to electromagnetic forces for rotating electric machines. This method can calculate the frequency response of vibration due to higher harmonics of electromagnetic forces. The usefulness of this method is verified through the agreement between calculated and measured results for a three-phase/four-pole induction motor. The authors also calculate the complicated dynamic behavior caused by eccentricity, that is, the difference of the stator axis and the rotor axis

Keywords

electromagnetic forces; frequency response; harmonics; induction motors; machine theory; rotors; stators; vibrations; dynamic behavior; eccentricity; electromagnetic force higher harmonics; frequency response; rotating electric machines; rotor axis; stator axis; three-phase four-pole induction motor; vibration analysis; Electric machines; Electromagnetic analysis; Electromagnetic forces; Frequency estimation; Induction motors; Laboratories; Magnetic analysis; Rotors; Stator cores; Vibrations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767329

Filename

767329