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Shock and Vibration
The sliding of the rolling element in the load zone would cause the bearing's wear and failure at high speed under elastohydrodynamic lubrication (EHL) condition. Aiming at this phenomenon, considering lubrication oil film, time-varying displacement, radial clearance, and comprehensive stiffness, a five degree-of-freedom (DOF) dynamic model of rolling bearing with local defect is proposed based on isothermal EHL and which is validated by experimental data. The variation of oil film stiffness,doi:10.1155/2020/9310278 fatcat:bkytmhzjgvbrncwskhp2qdthkq