期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 153, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2021.106515
关键词
Bending fatigue; Spur gear; Finite element analysis; Adjacent tooth effect; Gear mesh
This paper proposes a computational model for predicting bending fatigue failure of case hardened spur gears, taking into account the effect of the adjacent tooth on bending fatigue lives. Through the model, it is found that bending fatigue lives can vary by approximately 22% when considering the adjacent tooth effect, which should be considered when estimating bending fatigue lives of spur gears.
In this paper, a computational model for bending fatigue failure prediction of case hardened spur gears is proposed. The model consists of finite element gear and fatigue failure models, and it accounts for the actual stress-strain state at the tooth root by accounting for local elastic-plastic correction. By employing the proposed model, the effect of the adjacent tooth on bending fatigue lives is investigated. It is observed that bending fatigue lives can vary by approximately 22% when accounting for the adjacent tooth effect. Therefore, this effect should be considered when estimating bending fatigue lives of spur gears.
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