The theoretical modeling and experimental validation for distributed defect on inner race of ball bearing under radial load

摘要: This article presents the theoretical model to study vibration characteristics of ball bearing. The analysis is accounted for peripheral motions rolling elements as well inner and outer races using Lagrangian approach. In this mathematical model, contact between balls bearing considered nonlinear springs, whose stiffness obtained Hertzian elastic deformation theory. equations are solved by Runge–Kutta method iteratively. effects extended defect on race at different speeds sizes have been studied predicting response fast Fourier transformation shows that characteristic changes when interacts with a result load–deflection relation. implied size speed influencing parameters affecting dynamic behavior ...