Fault Diagnosis in Gears using Vibration Analysis

In gearboxes, load fluctuations on the gearbox and gear defects are two major sources of vibration. Further, at times, measurement of vibration in the gearbox is not easy because of the inaccessibility in mounting the vibration transducers. For detecting different type of gear tooth faults an experimental data is taken from single stage gearbox set up. Vibration analysis techniques are used for detection of fault in gear system, fluctuation in gear load. A method for detecting the evolution of gear faults based on time-amplitude analysis through LabVIEW. By comparing Signals of defective condition with healthy condition through vibration analyzer in which, analysis is carried out with the signal to trace of vibration. The validation is done successfully by taking input signal from accelerometer to LabVIEW program. It is for calculating effective statistical parameters in defective condition for time & amplitude domain analysis. The actual position in angle of rotation for one tooth missing in gearbox is also investigated by using LabVIEW program. It is also helpful tool for health monitoring of gears in different conditions. Key Words: Gearbox, Vibration Analysis, Accelerometer