Defect Diagnosis Of Bearing In An Induction Motor By Vibration Monitoring

Abstract

Induction motors are commonly utilized in both industry and the home. It's popular because of its durability and efficiency. In order to preserve its efficiency, every machine must be examined on a regular basis. and avoid unanticipated breakdowns that would result in a loss of productivity. As a result, fault diagnostics must be used to regularly monitor the motor in order to discover pump failures and, if necessary, replace it. Motor dismantling and reassembling during defect diagnostics is a time-consuming process. Vibration analysis is a time-consuming procedure that can be useful in monitoring the motor system's functionality without the need for disassembling induction motors were employed in this study for testing purposes. Utilizing the Lab VIEW software and a DAQ card as an interface, an accelerometer is employed to determine the amplitude and frequency of vibration at different axes of the pump. After that, the vibration spectrum is analyzed, and faults are detected by determining the frequency at which the vibration amplitude exceeds the danger threshold. Vibration data is used to diagnose faults such as impeller unbalance, bent shaft, shaft misalignment, cavitations, and bearing defects. The frequency with which various issues arise has been assessed employing induction motor experimentation. As a consequence, using vibration data to diagnose induction motors reduces the cost and time necessary for routine maintenance.