Research on vibration evolution of a ball bearing without the cage under local variable-diameter raceway damage
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Key Laboratory of Advanced Manufacturing Intelligent Technology Ministry of Education, Harbin University of Science and Technology, Harbin, China
Submission date: 2022-05-27
Final revision date: 2022-09-15
Acceptance date: 2022-10-03
Online publication date: 2023-01-05
Publication date: 2023-01-30
Corresponding author
Yanling Zhao   

College of Mechanical Engineering Power, Harbin university of science and technology, China
Journal of Theoretical and Applied Mechanics 2023;61(1):129-146
This article presents an analysis of vibration evolution of a ball bearing without the cage. A vibration model in which time-varying displacement, time-varying stiffness, contact force and collision force are comprehensively considered, is proposed. On this basis, the law of motion of the bearing is studied. It is shown that a variable-diameter raceway affects the radius of curvature, which effects the dispersion of rolling elements. The damaged variable- -diameter raceway leads to discrete failure, contact force and collision force of rolling elements, which are main reasons that cause vibration mutation. The bearing motion changes from quasi-periodic to chaotic motion.
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