A new model for calculating time-varying gearmesh stiffness

Yaguo Lei1, Delong Wang2, Zongyao Liu3, Xiao Yang4

Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System,
School of Mechanical Engineering, Xiían Jiaotong University, Xiían, 710049, China

1Corresponding author

E-mail: 1yaguolei@mail.xjtu.edu.cn, 2wangdelong@stu.xjtu.edu.cn, 3liuzongyao2009@126.com, 4yx_csu@163.com

Received 10 September 2017; accepted 18 September 2017

DOI https://doi.org/10.21595/vp.2017.19139

 

Abstract. Time-varying gearmesh stiffness (TVGS) is the main cause of gear vibration, and its accuracy affects the responses of dynamic models. An exponential curve model based on the Saint Venantís Principle is proposed to calculate the gearmesh stiffness of cracked spur gears in this paper. With the proposed model, the TVGS under the circumstances of healthy condition and four crack cases are computed, whose results have a good agreement with those of finite element method (FEM). Therefore, the exponential curve model can be used to estimate the TVGS and an alternative to FEM in gearmesh stiffness calculation is provided.

Keywords: time-varying gearmesh stiffness, tooth crack, exponential curve model.

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Cite this article

Lei Yaguo, Wang Delong, Liu Zongyao, Yang Xiao A new model for calculating time‑varying gearmesh stiffness. Vibroengineering PROCEDIA, Vol. 14, 2017, p. 334‑339.

 

© JVE International Ltd. Vibroengineering PROCEDIA. Oct 2017, Vol. 14. ISSN 2345-0533