Based on the Hertz contact theory, the collision model between rotor and catcher bearinginnerrace and the real-time dynamic stiffness of the bearing after AMB failure are respectively established.
The analysis results from roller bearing signals with inner-race or out-race faults show that the diagnosis approach could extract fault characteristics effectively.
对滚动轴承的内圈、外圈故障信号的分析结果表明本文方法可以有效地提取滚动轴承故障特征。
3
Bearing must be provided to ensure concentricity of the inner and outer race.