José A. Antonino-Daviu

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The analysis of the vibration response of electrical machines has importance in noise prediction and more recently, fault diagnosis. This work presents a strongly coupled 2-D magnetomechanical 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(More)
Structural defects in the rotor cage of large electrical machines significantly impact their expected operational lifetime. This work simulates the stresses developed in a damaged rotor cage during different transient profiles and for different sizes of the imperfection. A combined model featuring electrical, thermal and mechanical stages as well as three(More)
A theoretical study of the electromechanical transient after switch-on at standstill of an induction motor with rotor asymmetry is carried out. Purpose of this study is to assess the influence of the motor parameters on the amplitude and the duration of the electrical and the mechanical transient. Subsequently the influence of the transient characteristics(More)
The development of Condition-Based Maintenance and Prognostics and Health Management systems can be fostered by models that accurately reproduce the effects and propagation of faults. Conventional methods applied to the analysis and simulation of rotor asymmetries in induction machines are based in the classical 2-D finite element approach, which is unable(More)
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