RESEARCH ON THE COMPLEX MOTIONS OF ROLLING BEARING AND ITS EXTERNAL RING DAMAGE DIAGNOSIS METHOD

摘要

Aiming at bearing-rotor system and the damage of external ring of rolling bearing, the dynamicequations of the system are formulated based on rotor dynamics, Hertz theory and nonlineardynamics. After simulating the dynamic equation of the system numerically, the complicatedmovement is analyzed. The normal and fault vibration signal are disposed by the wavelet transformrespectively.