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《BEARING》 2000-04
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Random Signal Analysis for Bearing Vibration

Wang Guijin(1)  
It was assumed that the vibration generated by rotating a near perfect ball bearing will produce random signals if the bearing does not have significant defects on the rings and/or on the balls, and if grease and surfaces are free of foreign particles. If fatigue damage of the bearing develops at a slow rate, the stationary vibration signal, i.e., an ergodic process, would result. The chi square test was then proposed to check the normality of the vibration signal distribution.
【CateGory Index】: TB53
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