Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R<sub>a</sub>

He Di; Tang Jinyuan; Li Guowen; Zhou Wei

doi:10.16578/j.issn.1004.2539.2018.08.002

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Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a

更新时间：2022-10-20

- Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a
- Vol. 42, Issue 8, Pages: 6-10(2018)
- 作者机构：
  
  1. 中南大学高性能复杂制造国家重点实验室
  2. 湖南科技大学难加工材料高效精密加工湖南省重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.08.002
  CLC：
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[1]贺迪,唐进元,李国文,周炜.考虑粗糙度参数R_a影响的齿根弯曲疲劳寿命计算[J].机械传动,2018,42(08):6-10+38.

He Di, Tang Jinyuan, Li Guowen, et al. Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a. [J]. 42(8):6-10(2018)
[1]贺迪,唐进元,李国文,周炜.考虑粗糙度参数R_a影响的齿根弯曲疲劳寿命计算[J].机械传动,2018,42(08):6-10+38. DOI： 10.16578/j.issn.1004.2539.2018.08.002.

He Di, Tang Jinyuan, Li Guowen, et al. Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a. [J]. 42(8):6-10(2018) DOI： 10.16578/j.issn.1004.2539.2018.08.002.

摘要

表面形貌产生的应力集中效应对齿轮的疲劳寿命有重要影响,表面形貌对齿轮疲劳性能影响的定量分析方法是深入研究齿轮表面完整性及抗疲劳制造的基础性工作。以磨削加工的直齿轮为分析对象,提出一种基于表面形貌影响的齿根弯曲疲劳寿命预估方法。通过有限元分析得到齿根危险区域,采用白光干涉仪对齿根危险区域进行测量,根据测量数据确定表面形貌的统计分布参数和自相关函数。基于表面形貌统计分布参数和自相关函数对表面进行重构,得到有限元计算所需的表面形貌几何样本,用有限元方法分析齿根表面形貌的应力集中效应,基于材料S-N曲线估算齿根弯曲疲劳寿命,给出粗糙度R,a,与齿根弯曲疲劳寿命的定量关联规律。

Abstract

The stress concentration effect of surface topography plays an important role in the fatigue properties of gears. The quantitative analysis method of the effect of surface topography on gear fatigue performance is the basic work of an in-depth study of the surface integrity of gears and the anti-fatigue manufacturing. Taking the spur gear with grinding as analysis object,and a method to estimate the fatigue life of tooth root bending fatigue with the surface topography is presented. The risk area of tooth root is obtained by finite element analysis.The risk area of the tooth root is measured by the white light interferometer, the statistical distribution parameters and the exponential autocorrelation function is obtained according to the surface topography,and using them to reconstruct the surface topography needed for the finite element calculation. Based on the finite element method,the stress concentration effect of tooth root surface topography is analyzed,and the fatigue life of tooth root is estimated based on the S-N curve of materials,and the quantitative relationship between the roughness R,a, and the bending fatigue life of the tooth root is given.

关键词

粗糙度参数Ra磨削有限元齿轮弯曲疲劳寿命

Keywords

Roughness RaGrindingFinite elementGearBending fatigue life

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Related Institution

Beijing Institute of Aerospace Control Devices

AECC ZhongChuan Transmission Machinery Co., Ltd.

State Key Laboratory of High-Performance Complex Manufacturing, Central South University

Faculty of Materials and Manufacturing, Beijing University of Technology

Changcheng Institute of Metrology & Measurement, AVIC

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Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter Ra

DOI：10.16578/j.issn.1004.2539.2018.08.002

摘要

Abstract

关键词

Keywords

references

Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a