Method for Analyzing Vibrations Due to Electromagnetic Force in Electric Motors

In this paper, a method for predicting vibrations due to an electromagnetic force from among the other types of vibrations that occur in an electric motor is proposed. Among electromagnetic forces, the forces applied in the radial direction were separated into their spatial and temporal harmonic com...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 50; no. 2; pp. 297 - 300
Main Authors Jang, Ik-Sang, Ham, Sang-Hwan, Kim, Won-Ho, Jin, Chang-Sung, Cho, Su-Yeon, Lee, Ki-Doek, Lee, Jae-Jun, Kang, Dongwoo, Lee, Ju
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.02.2014
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
AC machines
Cross-disciplinary physics: materials science; rheology
electric machines
electromagnetic analysis
electromagnetic forces
Electromagnetics
Exact sciences and technology
Force
Harmonic analysis
Magnetism
Materials science
Motors
Other topics in materials science
Permanent magnet motors
Physics
Stators
Synchronous motors
Vibration
Vibrations
Vibrations
Electromagnetism
Electric machines
electromagnetic analysis
AC machines
Electromagnetic forces
Magnetic properties
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Summary:In this paper, a method for predicting vibrations due to an electromagnetic force from among the other types of vibrations that occur in an electric motor is proposed. Among electromagnetic forces, the forces applied in the radial direction were separated into their spatial and temporal harmonic components for developing the vibration-prediction method. Each separated radial force densities acts as a vibration source and generates vibrations combined with the mechanical characteristics of the motor. The separation of vibration sources makes it possible to predict the magnitude of the vibration velocity occurring in the motor. This enables optimal motor design considering vibration. To this end, a description explaining the characteristics of electromagnetic vibrations that occur in an eight-pole nine-slot permanent magnet synchronous motor has been provided in this paper as an example. In addition, the proposed method was verified by comparing the obtained vibration velocity with that obtained through electromagnetic-vibration coupled analysis.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2013.2280954