Title :
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
fDate :
5/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
