Condition Monitoring: A Convinient Technique for Vibration Analysis of Tooth Failure in Gear Box

Abstract

This dissertation work deals with the technique of condition monitoring to be applied to selected gearbox to assess the condition of gear teeth. Any change in condition of gear such as wear, a crack and lack of oil or failure of tooth during working may cause a corresponding change in the motion. The signals for known defect are collected by vibration accelerometer and sound pressure level probe (microphone) during working of gearbox. By introducing gears of known faults, the vibration and acoustic spectrum are collected by using Fast Fourier Transformer (FFT) and the corresponding changes in pattern are compared with the signals obtained from gear without faults. These changes in signals are then correlated to the faults of gear tooth.