Time Varying Meshing Stiffness Analysis and Experimental Study of Fatigue Pitting Helical Gear based on Finite Element Method

Jinkai Li; Yong Chen; Libin Zang; Wangyang Bi; Xiaopeng Yang

doi:10.16578/j.issn.1004.2539.2021.12.001

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Time Varying Meshing Stiffness Analysis and Experimental Study of Fatigue Pitting Helical Gear based on Finite Element Method

Theory·Reserach | 更新时间：2022-09-15

- Time Varying Meshing Stiffness Analysis and Experimental Study of Fatigue Pitting Helical Gear based on Finite Element Method
- Journal of Mechanical Transmission Vol. 45, Issue 12, Pages: 1-7(2021)
- 作者机构：
  
  1.天津市新能源汽车动力传动与安全技术重点实验室，天津 300130
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.12.001
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李金锴,陈勇,臧立彬等.基于有限元法的疲劳点蚀斜齿轮时变啮合刚度分析与试验研究[J].机械传动,2021,45(12):1-7.

Li Jinkai,Chen Yong,Zang Libin,et al.Time Varying Meshing Stiffness Analysis and Experimental Study of Fatigue Pitting Helical Gear based on Finite Element Method[J].Journal of Mechanical Transmission,2021,45(12):1-7.
李金锴,陈勇,臧立彬等.基于有限元法的疲劳点蚀斜齿轮时变啮合刚度分析与试验研究[J].机械传动,2021,45(12):1-7. DOI： 10.16578/j.issn.1004.2539.2021.12.001.

Li Jinkai,Chen Yong,Zang Libin,et al.Time Varying Meshing Stiffness Analysis and Experimental Study of Fatigue Pitting Helical Gear based on Finite Element Method[J].Journal of Mechanical Transmission,2021,45(12):1-7. DOI： 10.16578/j.issn.1004.2539.2021.12.001.

摘要

疲劳点蚀斜齿轮啮合刚度计算是齿轮故障动力学分析的重要基础。基于有限元的斜齿轮啮合刚度计算方法，建立了正常齿轮和疲劳点蚀齿轮的有限元模型。通过有限元模型计算，得到了齿面法向接触力和综合弹性变形量；并根据啮合刚度计算方法，得到了齿轮的单齿啮合刚度和多齿综合啮合刚度。分析不同点蚀剥落长度和宽度对齿轮啮合刚度的影响得知，剥落长度和宽度对齿轮啮合刚度影响较大；而且剥落长度会影响齿轮啮合刚度的变化区域。通过疲劳点蚀试验证明，齿轮啮合刚度的减小使得齿轮振动冲击响应增大。

Abstract

Meshing stiffness calculation of fatigue pitting helical gear is an important basis of gear failure dynamics analysis. The finite element models of normal gears and fatigue pitting gears are established by using the finite element method to calculate the meshing stiffness of helical gears. Through the finite element model calculation，the normal contact force and comprehensive elastic deformation of the tooth surface are obtained. According to the calculation method of meshing stiffness，the single tooth meshing stiffness and multi tooth comprehensive meshing stiffness of the gear are obtained. The influence of different spalling length and width of pitting corrosion on the meshing stiffness of gears is analyzed. The results show that the spalling length and width have great influence on the meshing stiffness of gears，and the spalling length will affect the change area of meshing stiffness of gears. Through the fatigue pitting test，it shows that the reduction of gear meshing stiffness makes the gear vibration impact response increase.

关键词

斜齿轮点蚀时变啮合刚度有限元法

Keywords

Helical gearPittingTime varying meshing stiffnessFinite element method

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