Multi-point Pitting Corrosion Fault Diagnosis on Rolling Element Bearing of Vibrating Machine

According to the mechanical vibration of rolling element bearing multi-point pitting fault diagnosis problems, the vibration model of the multi-point pitting corrosion fault was built in the vibrating machine rolling element bearing with inner ring and outer ring based on Hertz contact theory. We proposed a criterion of multi-point pitting failure, simulated the theoretical model, and did some research on the vibrant screen. There is an obvious phenomenon of amplitude modulation when vibrating machine rolling element bearing has an outer ring pitting fault, but the phenomenon of amplitude modulation was shown when rotating machine rolling element bearing has an outer ring pitting fault, which was shown by theoretical analysis and experimental results. There is a slight amplitude modulation phenomenon when vibrating machine rolling element bearing has an inner ring pitting fault, and there is phenomenal of amplitude modulation when rotating machine rolling element bearing has an inner ring pitting fault.