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On the use of stochastic resonance for fault detection in spur gearboxes

Mba C. U., Marchesiello S., Fasana A., Garibaldi L.

Diagnostyka

2017

Vol. 18, No. 3

3--13

This study demonstrates how a time domain data based non-linear approach known as Stochastic Resonance (SR) can be effectively used for fault detection in spur gearboxes. SR has just been used recently for fault diagnosis in mechanical systems with a focus on faulty systems. This paper examines the behaviour of SR when it is applied to healthy systems, in particular a healthy gearbox and explores approaches like residual signal and filtered signal computations to aid in the containment of false alarms while improving overall results. Although SR is a time domain procedure, its results also extend to the frequency domain.