Research On Vibration Model and Simulation for an Outer Ring Faulty Bearing Under Variable Speed

The paper puts forwards the vibration model of faulty bearing and its differential equation,and builds up the vibration model of faulty bearing with a single defect on outer ring under variable speed.A simulated model is built up later by using the simulation tool Simulation.The outputs of simulated model and experiments are compared in both time domain and frequency domain and the theory model is proved to be correct.