[1]叶孟洪.基于CRH2A型动车组车轴疲劳裂纹扩展超声波探伤周期优化探讨[J].机车电传动,2020,(05):101-105.[doi:10.13890/j.issn.1000-128x.2020.05.022]
 YE Menghong.Discussion on Ultrasonic Inspection Intervals Based on Fatigue CrackGrowth Life Analysis of Axle for CRH2A EMU[J].Electric Drive for Locomotives,2020,(05):101-105.[doi:10.13890/j.issn.1000-128x.2020.05.022]
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基于CRH2A型动车组车轴疲劳裂纹扩展超声波探伤周期优化探讨()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2020年05期
页码:
101-105
栏目:
研究开发
出版日期:
2020-09-10

文章信息/Info

Title:
Discussion on Ultrasonic Inspection Intervals Based on Fatigue CrackGrowth Life Analysis of Axle for CRH2A EMU
文章编号:
1000-128X(2020)05-0101-05
作者:
叶孟洪
(中国国家铁路集团有限公司 成都安全监督管理特派员办事处,四川 成都 610082)
Author(s):
YE Menghong
( Chengdu Safety Supervision and Management Office, China National Railway Group Co., Ltd., Chengdu, Sichuan 610082, China )
关键词:
CRH2A型动车组车轴疲劳裂纹扩展寿命分析超声波探伤周期
Keywords:
CRH2A EMU axle the fatigue crack growth life analysis the ultrasonic inspection interval
分类号:
U266.2
DOI:
10.13890/j.issn.1000-128x.2020.05.022
文献标志码:
A
摘要:
介绍了不同类型车辆车轴超声波探伤周期和CRH2A型动车组车轴概况。通过综合考虑初始裂纹、临界裂纹、应力比、断裂韧性和有效应力强度因子等因素得出疲劳裂纹扩展寿命计算公式,通过以车轴最薄弱部位存在表面半椭圆形裂纹并承受最大应力幅值计算CRH2A型动车组车轴疲劳裂纹扩展寿命,与车轴超声波探伤周期进行比较分析,认为优化现行探伤周期具有可行性。
Abstract:
The ultrasonic inspection interval of different types of vehicle axles and the overview of CRH2A EMU axles was introduced. By comprehensively considering the initial crack, critical crack, stress ratio, fracture toughness and effective stress intensity factor and other factors, the formula for calculating the fatigue crack propagation life was obtained. Furthermore, based on the unilateral semi-elliptical surface crack existing at the weakest part of the axle and the maximum stress amplitude, the fatigue crack growth life of CRH2A EMU axles was calculated, with comparison and analysis of the ultrasonic flaw detection cycle of the axles, it was proved feasible to optimize the current ultrasonic flaw detection interval.

参考文献/References:

[1] BERETTA S, CARBONI M, CANTINI S, et al. Application of fatigue crack growth algorithms to railway axles and comparison of two steel grades[J]. Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit, 2004, 218(4): 317-326.[2] 林浩博. 高速动车组S38C车轴疲劳、裂纹扩展特性及可靠性研究[D]. 北京: 北京交通大学, 2018.[3] 周素霞, 谢基龙. 高速客车空心车轴裂纹扩展特性研究[J]. 工程力学, 2009, 26(7): 232-237.[4] 铁道部标准计量研究所. 铁道机车车辆动力车轴设计方法: TB/T 2395—2008[S]. 北京: 中国铁道出版社, 2009.[5] 江冰. 新一代高速动车组列车牵引力学计算分析[J]. 内燃机车, 2011(3): 27-28.[6] 宋逸飞. 中国标准动车组轮轴结构振动及疲劳寿命影响研究[D]. 北京: 北京交通大学, 2020.[7] PARIS P, ERDOGAN F. Critical analysis of crack propagation laws[J]. Journal of Basic Engineering: Transaction ASTM(Series D), 1963, 85(3): 528-534.[8] 陈传尧. 疲劳与断裂[M]. 武汉: 华中科技大学出版社, 2002.[9] 中国航空研究院. 应力强度因子手册[M]. 北京: 科学出版社, 1981.[10] 刘宇轩, 吴圣川, 李存海, 等. 轴箱内置型铁路车轴疲劳性能与寿命评估[J]. 交通运输工程学报, 2019, 19(3): 100-108.

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备注/Memo

备注/Memo:
作者简介:叶孟洪(1970—),男,高级工程师,现主要从事轨道车辆检修技术管理工作。
更新日期/Last Update: 2020-09-10