Author : Ajanalkar Sagar Shivputra and Ganesh D. Shrigandhi

Nowadays it is becoming more essential and reliable to predict the performance of gear box without dissembling the gear box. It is possible to predict the fault and fault conditions in case of any rotary machinery by using vibration analysis with the help of FFT analyzer and its accessories. In this paper, the similar kind of experimental setup is prepared and the vibration analysis is carried out at different speeds to analyze the behavior of time waveform and FFT spectrum for three different fault conditions. The gear pair of Bajaj Pulsar gear box is taken and the faults are created on pinion and the vibration behavior is observed. The three fault conditions are single tooth damaged pinion, double teeth damaged pinion and worn pinion. Also some of the numerical techniques like RMS value and variance are used for comparing the behavior of faulty pinion with respect to healthy pinion.

Keywords: Vibration Analysis, Fault Identification, Gear Fault.