Investigation on Skidding of Rolling Element Bearing in Loaded Zone
Yi-Min Shao1, Wen-Bing Tu1, Zai-Gang Chen1, Zhi-Jie Xie2, Bao-Yu Song2
(1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China;2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China);1.State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China;2.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
Abstract:
Skidding which occurs when rolling element entering into the loaded zone is prone to cause wear and incipient failure to the raceways and rolling elements. This paper presents a dynamic model to investigate the skidding of a rolling element bearing under radial load when the rolling element is entering into the load zone. In this dynamic model, the effects of the contact forces, friction forces on the rolling element-race and rolling element-cage interfaces, gravity, and the centrifugal forces of rolling elements are taken into consideration. The Hertzian contact theory is applied to calculate the non-linear contact forces. The Coulomb friction law is used to calculate the friction forces. The differential equations of rotational motion of the rolling element with regard to its central axis and the central axis of the outer ring are established respectively. The dynamic equations are then solved by using a fourth-order Runge-Kutta algorithm. The skidding characteristics of rolling element at the entry into the loaded zone are exposed, and the effects of the operating parameters on skidding behavior are carefully investigated.
Key words: rolling element bearing skidding loaded zone dynamic model
DOI：10.11916/j.issn.1005-9113.2013.01.007
Clc Number:TH11
Fund:
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Investigation on Skidding of Rolling Element Bearing in Loaded Zone
本站小编 哈尔滨工业大学/2019-10-24
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