Vibration and Modal Analysis of Induction Motor

Abstract:

Calculation of the induction motor machine modal frequencies of an electrical machine accurately is the base of reducing acoustic noise and vibration. This paper presents a detailed research on the induction motor mode shapes and natural frequencies of induction motor by using 3D finite element technique, based on simplified modal, The influence of and mounting feet and rotor on mode shapes and natural frequencies are investigated systematically. Mounting feet and rotor have a great effect on natural frequencies, the mounting feet and rotor will result in the number of the motor low-vibration mode increases\the frequencies rise obviously, the mounting feet result in motor vibration mode becomes more complicated, rotor modals become an important part of motor mode shapes, the number of the motor low-vibration mode increases. Predictions are validated against experimental results.

• Periodical: Applied Mechanics and Materials (Volumes 226-228)
• Pages: 92-97
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.226-228.92
• Online since: November 2012
• Authors: Rui Li, Qi Fen Jia, Shun Zhong
• Keywords: Finite Element, Induction Motor (IM), Mode Shape, Natural Frequency, Noise, Rotor

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