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- Title
Analysis of Dynamic Features of Gear–Bearing Systems with Bearing Raceway Failures.
- Authors
Li, Wei; Tan, Yalou; Li, Ziyuan; Tao, Yaping
- Abstract
The gear–bearing system is a complex mechanical transmission system. It consists of gears, drive shafts, bearings, and various other components. This system usually operates in harsh environments, often under heavy loads for extended periods. As a result of these conditions, there is a higher likelihood of damage occurring to individual components. Importantly, any abnormalities or failures in any part of the transmission system can significantly impact the dynamic behavior of the entire system. During high-speed operation of a rolling bearing, if there are localized defects on the inner or outer ring of the bearing, when the rolling elements pass over these defects during rotation, the contact stress between the rolling elements and the bearing raceway can suddenly change. This change leads to the generation of vibration shocks. This paper introduces a dynamic model for a multi-stage gear–bearing system. The model considers the vibrations caused by the impact of rolling elements passing through defects in the raceway. The study investigates how defects in the bearing raceway affect the dynamics of the gear–bearing system. This is achieved through the application of the numerical integration technique called Runge–Kutta and the simulation analysis method for rigid body dynamics. The results shed light on the dynamic behavior of the gear–bearing system under faulty conditions. Ultimately, the vibration characteristics of the gear–bearing system in the presence of raceway defects are put to the test using the FZG gear testing machine. This experimental verification serves to validate the accuracy of both the theoretical framework and the simulation results.
- Subjects
RIGID body mechanics; ROLLER bearings; NUMERICAL integration; DRIVE shafts
- Publication
Journal of Failure Analysis & Prevention, 2023, Vol 23, Issue 5, p2105
- ISSN
1547-7029
- Publication type
Article
- DOI
10.1007/s11668-023-01755-z