动车组车轮辋裂损伤容限和剩余寿命评估

doi:10.12068/j.issn.1005-3026.2022.12.010

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (12): 1740-1747.DOI: 10.12068/j.issn.1005-3026.2022.12.010

动车组车轮辋裂损伤容限和剩余寿命评估

丛韬^1,2，陈刚³，吴斯²，赵飒²

(1. 北京交通大学机械与电子控制工程学院，北京100044； 2. 中国铁道科学研究院集团有限公司金属及化学研究所，北京100081； 3. 宝武集团马钢轨交材料科技有限公司，安徽马鞍山243021)

发布日期:2022-12-26
通讯作者: 丛韬
作者简介:丛韬(1982-)，男，北京人，北京交通大学博士研究生，中国铁道科学研究院集团有限公司副研究员.
基金资助:
国家重点研发计划项目(2017YFB0702004)；中国国家铁路集团有限公司科技研究开发计划项目(J2019J004)；中国铁道科学研究院集团有限公司科研项目(2020YJ120).

Damage Tolerance and Remain Fatigue Life Evaluation of Shattered Rim of EMU Wheels

CONG Tao^1,2， CHEN Gang³， WU Si²， ZHAO Sa²

1. School of Mechanical， Electronic and Control Engineering， Beijing Jiaotong University， Beijing 100044， China; 2. Metals and Chemistry Research Institute， China Academy of Railway Sciences Corporation Limited， Beijing 100081， China; 3. Baowu Group Masteel Rail Transit Materials Technology Company Limited， Maanshan 243021， China.

Published:2022-12-26
Contact: CONG Tao
About author:-
Supported by:
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摘要/Abstract

摘要： 针对我国某型动车组车轮在实际线路发生的辋裂损伤，在全面失效分析的基础上，揭示了车轮辋裂失效机理；以车轮材料裂纹扩展试验数据为基础，结合Franc3D仿真分析软件对车轮内部缺陷进行裂纹扩展仿真计算.仿真结果表明:车轮内部缺陷尺寸及分布均对车轮滚动接触疲劳寿命产生影响，缺陷尺寸越大，分布位置距车轮最大应力区越近，车轮疲劳寿命越短.该车轮的损伤容限为3mm，与标准中失效判据3mm一致，给出了目前我国铁路车轮辋裂失效探伤标准(3mm横孔当量大小)的理论依据.

关键词: 车轮；辋裂；裂纹扩展；损伤容限；寿命评估

Abstract: Aiming at the shattered rim crack damage of a certain type of Chinese EMU in the actual line， the failure mechanism of the shattered rim of EMU wheels was revealed on the basis of comprehensive failure analysis. Based on the test data of wheel materials’ crack propagation， combined with Franc3D simulation analysis software， the crack propagation simulation calculation was carried out for the defect. The simulation results showed that both the size and distribution of the internal defects of the wheel have an impact on the rolling contact fatigue life of the wheel. The larger the defect size， the closer the distribution position is to the maximum stress area of the wheel， and the shorter the wheel’s fatigue life. The damage tolerance of the wheel is 3mm， which is consistent with the failure criterion of 3mm in the standard. The theoretical basis of the current standard(the equivalent size of a 3mm transverse hole)for detecting the crack failure of railway wheel rim in China is given.

Key words: wheel; shattered rim; crack propagation; damage tolerance; fatigue life evaluation

中图分类号:

丛韬，陈刚，吴斯，赵飒. 动车组车轮辋裂损伤容限和剩余寿命评估[J]. 东北大学学报（自然科学版）, 2022, 43(12): 1740-1747.

CONG Tao， CHEN Gang， WU Si， ZHAO Sa. Damage Tolerance and Remain Fatigue Life Evaluation of Shattered Rim of EMU Wheels[J]. Journal of Northeastern University(Natural Science), 2022, 43(12): 1740-1747.

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动车组车轮辋裂损伤容限和剩余寿命评估

Damage Tolerance and Remain Fatigue Life Evaluation of Shattered Rim of EMU Wheels

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