Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials

Daojun Li; Qingbo Lu; Deping Liu

doi:10.16578/j.issn.1004.2539.2021.04.017

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Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials

Test·Analysis | 更新时间：2022-11-10

- Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials
- Journal of Mechanical Transmission Vol. 45, Issue 4, Pages: 100-104(2021)
- 作者机构：
  
  1.郑州职业技术学院电气电子工程系，河南郑州 450121
  2.郑州职业技术学院机械工程系，河南郑州 450121
  3.郑州大学机械与动力工程学院，河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.04.017
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李道军,卢青波,刘德平.18CrNiMo7-6和20CrMnTi材料齿根弯曲疲劳寿命对比[J].机械传动,2021,45(04):100-104.

Li Daojun,Lu Qingbo,Liu Deping.Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials[J].Journal of Mechanical Transmission,2021,45(04):100-104.
李道军,卢青波,刘德平.18CrNiMo7-6和20CrMnTi材料齿根弯曲疲劳寿命对比[J].机械传动,2021,45(04):100-104. DOI： 10.16578/j.issn.1004.2539.2021.04.017.

Li Daojun,Lu Qingbo,Liu Deping.Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials[J].Journal of Mechanical Transmission,2021,45(04):100-104. DOI： 10.16578/j.issn.1004.2539.2021.04.017.

摘要

对比了齿轮钢材料18CrNiMo7-6与20CrMnTi的齿根弯曲疲劳寿命。基于这两种材料的疲劳特性，采用SolidWorks中的GearTrax插件建立齿轮模型，并通过Workbench对齿轮的轮齿进行静力学分析；将静力学分析结果导入疲劳分析软件FE-SAFE中，结合载荷谱信息对两种材料齿轮进行疲劳寿命计算，得到齿轮的寿命云图并进行了仿真分析比较；通过试验验证了该仿真方法的可行性。结果表明，在相同的载荷条件下，18CrNiMo7-6齿轮的疲劳寿命大于20CrMnTi齿轮的疲劳寿命，与试验结果较为接近。该分析结果对工程实践具有一定的指导作用。

Abstract

In order to compare the tooth root bending fatigue life of 18CrNiMo7-6 and 20CrMnTi gears，based on the fatigue characteristics of these two materials，the gear model is built by using the GearTrax plug-in in the 3D modeling software SolidWorks. Through the finite element analysis software Workbench， the statics analysis of the single tooth of the gear is performed，and then the static analysis result is introduced into the fatigue analysis software FE-SAFE，in combination with the load spectrum information， the fatigue life of the two gears are calculated，and the obtaining life cloud maps are analyzed and compared. The feasibility of the simulation method is verified by experiments. The results show that， under the same load conditions， the fatigue life of gears with 18CrNiMo7-6 is slightly greater than that with 20CrMnTi， it is close to the experimental results. The analysis results have a certain guiding role for engineering practice.

关键词

疲劳寿命齿轮静力学仿真分析

Keywords

Fatigue lifeGearStaticsSimulation analysis

references

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