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This paper presents a fast and computationally efficient algorithm based on the combination of both zoom-MUSIC and zoom-FFT methods for gear tooth localized fault detection in induction machine-based systems. This method relies mainly on the zoom-MUSIC technique for rotor speed estimation at a primary stage and the application of the zoom-FFT to notch filtered instantaneous frequencies of the stator...
Vibration measurement and analysis have been used as a classical approach for health state assessment of gears in complex electromechanical systems for many years. Recently, several attempts have been performed for the detection of gear tooth localized faults using induction machine electrical signature analysis with promising results. These previous researches were mainly relied on the study of mechanical...
The aim of this paper is the analytical and experimental study of a gearbox by using the stator current signature analysis in the driving induction machines. The mechanical study using the vibration signal analysis has been well studied before. Recently, some works have been performed to observe the vibration components of the mechanical part in the stator current spectrum for an induction machine...
The heavy duty drives need a continuous monitoring to avoid sudden loss of operation. In these systems, the mechanical anomalies like load troubles, great torque dynamic variations and torsional oscillations, result in the fatigue of the shaft driving electrical machine and other mechanical parts as bearings and gearboxes. Then, the permanent on-site mechanical performance has to be evaluated to predict...
Mechanical anomalies like load troubles, great torque dynamic variations and torsional oscillations, result in the fatigue of the shaft driving electrical machine and other mechanical parts as bearings and gearboxes of complex electromechanical systems. Particularly in non-stationary condition, torsional vibration can reach important levels at resonant frequencies by producing weaknesses in the mechanical...
The aim of this paper is the monitoring of a gearbox by using the stator current signature analysis in the driving induction machines. The detection of mechanical faults using the vibration signal analysis has been well studied before. Recently, some works have been performed in order to observe the vibration components of the mechanical part in the stator current spectrum for an induction machine...
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