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DIAGNOSIS OF CRACKED GEARS USING THE EMPIRICAL WAVELET TRANSFORM
1 : Laboratoire génie industriel
FST SULTAN MOULAY SLIMANE -
Maroc
In the present work, the non-linear dynamic behavior of an eight degrees of freedom gear system is investigated in presence of defects. The main sources of excitation are the time varying mesh stiffness and backlash. The presence of a defect in the system vibratory behavior is detected by the Empirical Wavelet (EWT). A comparative study with the Empirical Mode Decomposition (EMD) is made which shows that the EWT is a powerful tool in the early fault detection for gears and gearbox.
