Fault Diagnosis of Gear by Vibration Analysis (original) (raw)

Unexpected production delays cause substantial costs in many branches of industry. A machine consists of many potentially defective elements, such as gears, bearings, shafts etc. During operation, each element contributes to the overall vibration of the machine. Each specific machine element has its own vibration signature. The purpose of machine vibration monitoring is to use the modified vibration signature to detect, localize, diagnose and prognosticate the defective gear so that relevant maintenance can be planned. When a defect e.g., a fatigue crack, appears in an element, e.g., a gear, its signature is modified. The dynamic response of gears is a matter of concern because of noise generation and dynamic loads. The present study is focused on the different modes failures observed in gears which are detected by using vibration based monitoring technique Fast Fourier Transform. A test rig is prepared to carry out the analysis by simulating faults in the gear and generating spectr...

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