RESEARCH ON FATIGUE CRACK PROPAGATION CHARACTERISTICS AND REMAINING LIFE AT THE TOOTH ROOT OF A GEAR

GAO Yun; YANG LiuQing; LIU Shuai; CHEN WenHua; ZHOU Xun

doi:10.16579/j.issn.1001.9669.2019.03.034

您当前的位置：

首页 >

文章列表页 >

RESEARCH ON FATIGUE CRACK PROPAGATION CHARACTERISTICS AND REMAINING LIFE AT THE TOOTH ROOT OF A GEAR

更新时间：2022-09-22

- RESEARCH ON FATIGUE CRACK PROPAGATION CHARACTERISTICS AND REMAINING LIFE AT THE TOOTH ROOT OF A GEAR
- Journal of Mechanical Strength Vol. 41, Issue 3, Pages: 718-723(2019)
- 作者机构：
  
  1. 浙江理工大学机械与自动控制学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.03.034
  CLC：
扫描看全文
GAO Yun, YANG LiuQing, LIU Shuai, et al. RESEARCH ON FATIGUE CRACK PROPAGATION CHARACTERISTICS AND REMAINING LIFE AT THE TOOTH ROOT OF A GEAR. [J]. 41(3):718-723(2019)
DOI：

GAO Yun, YANG LiuQing, LIU Shuai, et al. RESEARCH ON FATIGUE CRACK PROPAGATION CHARACTERISTICS AND REMAINING LIFE AT THE TOOTH ROOT OF A GEAR. [J]. 41(3):718-723(2019) DOI： 10.16579/j.issn.1001.9669.2019.03.034.

摘要

以某渐开线圆柱齿轮为对象,基于有限元法对其齿根疲劳裂纹的扩展进行了数值模拟。首先通过对一对健康齿的啮合分析确定其啮合过程中齿根部位弯曲应力最大点,并将其作为裂纹起始点。据此将其分割为裂纹块和非裂纹块。在裂纹块预制初始裂纹并重生网格,裂纹块网格采用等参奇异单元,裂纹块和非裂纹块之间通过多点约束连接不匹配节点。利用有限元分析得到裂纹扩展过程中应力强度因子变化情况,并根据最大周向应力准则计算疲劳裂纹扩展角度,模拟齿根裂纹扩展轨迹,依据Paris公式对齿根疲劳裂纹剩余寿命进行预估。分析了载荷大小和初始裂纹长度对剩余寿命的影响。

Abstract

Based on the FEM, the fatigue crack propagation of a involute cylindrical gear is numerically simulated. Firstly, through analyzing the meshing gear of a pair of healthy teeth, the maximum bending stress of the tooth root is determined, And it is taken as the starting point of the crack. The cracks are divided into crack and non crack blocks. The initial crack is preformed in the crack block and the block is remeshed with isoparametric singular element. The crack block and the non cracked block is connected by a multi-point constraint. The stress intensity factor and crack propagation angle are measured in crack propagation process, Based on Paris formula,tooth crack propagation trajectory and remaining life of gear is numerically simulated. The influence of load as well as initial crack length on residual life was analyzed.

关键词

齿轮疲劳裂纹应力强度因子裂纹扩展角疲劳寿命

Keywords

GearsFatigue crackSIFCrack growth angleFatigue life

references

Views

732

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

FATIGUE LIFE ANALYSIS OF PIPELINE CONSIDERING INITIAL ASSEMBLY STRESS (MT)

STUDY ON FATIGUE LIFE OF SUS304 STAINLESS STEEL SPOT WELDED JOINTS (MT)

CAE SIMULATION ANALYSIS AND RIG TEST VALIDATION RESEARCH OF AUTOMOBILE LEAFSPRING (MT)

FATIGUE LIFE PREDICTION AND EXPERIMENTAL STUDY OF ALUMINUM ALLOY WHEEL HUB CONSIDERING DAMAGE ACCUMULATION (MT)

RESEARCH ON THE FATIGUE CRACK PROPAGATION OF AIRCRAFT FUSELAGE SKIN UNDER UNIFORM PRESSURIZED LOAD (MT)

Related Author

No data

Related Institution

Chengdu Aircraft Industrial (Group) Co., Ltd.

Civil Aviation College, Nanjing University of Aeronautics and Astronautics

College of General Aviation and Flight, Nanjing University of Aeronautics and Astronautics

School of Mechanical Engineering, Hebei University of Technology

Qinhuangdao Tobacco Machinery Co., Ltd.

⁰