Fault Diagnosis of Spur Gear box For Structural Health monitoring

Abstract

Vibration is the blight of any machine tool industries which creates improper surface finish of the work piece. In this project, an attempt has been made to analyze high speed gearbox used in high speed machining for vibration characteristics under dynamic conditions. Analytical calculations are carried out to arrive at the dimensions of gearbox based on the desired speed ratio. With the help of time history, mesh frequency spectrum and its harmonics, the dynamic response of high speed gearbox is studied through multi body analysis. Modal analysis and critical speed of the high speed gearbox are carried out through simulating software for flexible bodies. Based on the results, the design modifications are carried out to avoid resonance.