2-D Magnetomechanical Transient Study of a Motor Suffering a Bar Breakage

Conference Object
Change log

© 1972-2012 IEEE. The analysis of the vibration response of electrical machines has importance in noise prediction and more recently, diagnosis of electrical faults, especially in the industrial environment, where it is a well-known technique. This work assesses the performance of a strongly coupled two-dimensional (2-D) magnetomechanical approach, as directly available in multiphysics software, for the simulation of an induction machine under heavy operational conditions: a direct-on-line startup. Both healthy and broken bar states are simulated in a time span long enough to allow the detailed study of the varying frequency components. The results yield, in addition to the usual electrical and magnetic quantities, electromagnetic-induced vibration components in the stator. A comparison with current and vibration experimental data is also performed showing a good agreement with variable frequency components and certain limitations concerning their amplitude.

Finite element analysis, fault diagnosis, induction motors, multiphysics, rotors, vibrations
Journal Title
IEEE Transactions on Industry Applications
Conference Name
ECCE 2017
Journal ISSN
Volume Title
Institute of Electrical and Electronics Engineers (IEEE)