FATIGUE LIFE ANALYSIS OF SHAFTING-YOKE IN GEARBOX

CHEN Ping; FANG Jie; ZHOU Zhi; XU Xing; ZHANG JingTong

doi:10.16579/j.issn.1001.9669.2020.03.026

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FATIGUE LIFE ANALYSIS OF SHAFTING-YOKE IN GEARBOX

更新时间：2022-09-22

- FATIGUE LIFE ANALYSIS OF SHAFTING-YOKE IN GEARBOX
- Journal of Mechanical Strength Vol. 42, Issue 3, Pages: 688-693(2020)
- 作者机构：
  
  1. 重庆大学机械工程学院
  2. 重庆山青机械制造有限公司
  3. 陕西汽车控股集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.03.026
  CLC：
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CHEN Ping, FANG Jie, ZHOU Zhi, et al. FATIGUE LIFE ANALYSIS OF SHAFTING-YOKE IN GEARBOX. [J]. 42(3):688-693(2020)
DOI：

CHEN Ping, FANG Jie, ZHOU Zhi, et al. FATIGUE LIFE ANALYSIS OF SHAFTING-YOKE IN GEARBOX. [J]. 42(3):688-693(2020) DOI： 10.16579/j.issn.1001.9669.2020.03.026.

摘要

拨叉作为汽车变速箱换挡关键的零件之一,其寿命直接影响变速箱的性能。以某手动变速箱换挡拨叉为研究对象,利用有限元软件分析拨叉的疲劳应力,采用动力学仿真软件获取拨叉的载荷谱。提出一种基于GL规范拟合材料S-N曲线与Goodman平均应力修正相结合的方法进行拨叉的疲劳寿命分析。疲劳试验机的试验结果表明,二者破坏的位置与疲劳寿命基本一致,证明了所提出方法的可靠性和实用性,为后续此类拨叉结构设计与优化提供了依据,具有普遍适用性。

Abstract

As one of the crucial components of the gearbox in the car,the Shafting-Yoke’s fatigue life directly affects the performance of the gearbox. The Shafting-Yoke of the manual transmission is taken as the research object,which adopting finite element software to analysis its fatigue stress and employing the dynamic simulation software to obtain its load spectrum. A method combining based on GL code predicting material S-N curve and Goodman mean stress correction was developed to calculate the fatigue life of Shafting-Yoke. The fatigue test of Shafting-Yoke shows that the location of damage and the fatigue life of ShaftingYoke of computer simulation and protracted-test are basically same,which proves the reliability and practicability of method promoted in this paper,it can play a guiding role for structure design and optimization of Shafting-Yoke.

关键词

拨叉疲劳寿命S-N曲线Goodman平均应力修正疲劳试验

Keywords

Shafting-yokeFatigue lifeS-N CurveGoodman mean stress correctionProtracted-test

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