[1]李瑞霞,赵力,齐双强,等.轨道车辆车轴强度及疲劳裂纹扩展寿命分析[J].机车电传动,2013,(02):74-77.[doi:10.13890/j.issn.1000-128x.2013.02.024]
 LI Rui-xia,ZHAO Li,QI Shuang-qiang,et al.Analysis of Rail Vehicle Axle Strength and Fatigue Crack Propagation Life[J].Electric Drive for Locomotives,2013,(02):74-77.[doi:10.13890/j.issn.1000-128x.2013.02.024]
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轨道车辆车轴强度及疲劳裂纹扩展寿命分析()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2013年02期
页码:
74-77
栏目:
试验检测
出版日期:
2013-03-10

文章信息/Info

Title:
Analysis of Rail Vehicle Axle Strength and Fatigue Crack Propagation Life
文章编号:
1000-128X(2013)02-0074-04
作者:
李瑞霞赵力齐双强王桂军
(宝鸡南车时代工程机械有限公司,陕西宝鸡721003)
Author(s):
LI Rui-xiaZHAO LiQI Shuang-qiangWANG Gui-jun
( Baoji CSR Times Engineering Machinery Co., Ltd., Baoji, Shaanxi 721003, China )
关键词:
轨道车辆车轴强度分析裂纹扩展寿命
Keywords:
rail vehicle axle strength analysis crack propagation life
分类号:
U260.331+.1;TP391.9
DOI:
10.13890/j.issn.1000-128x.2013.02.024
摘要:
以GCY300II型轨道车12 t轴重车轴为研究对象,采用机车车轴的强度标准,利用有限元计算方法计算车轴不同轴重下的6种不同工况的静强度和疲劳强度,在获得对应工况的应力分布及数值的基础上,进行车轴的静强度和疲劳强度分析,并确定车轴薄弱部位,然后假定车轴最薄弱部位出现疲劳裂纹,将不同轴重、不同工况下计算得到的应力数值作为车轴裂纹处的载荷应力谱,再结合疲劳断裂分析理论计算分析车轴疲劳裂纹扩展寿命。计算结果表明:车轴薄弱部位为车轴变截面处,其中最薄弱部位为车轮内侧轮座处上边缘。
Abstract:
Taking axle of GCY300II 12t-axle-load rail car as research object, according to locomotive axle strength standards, axle static and fatigue strength of the six different conditions with different axle load was calculated with finite element method. Based on the stress distribution and numerical value, static and fatigue strength of axle were analyzed, and weak parts of the axle was determined. Assuming the weakest parts of axle, and taking stress values of different axle load and different conditions as axle cracking-point stress spectrum, fatigue crack propagation life of axle was analyzed combined with theoretical calculation. The results showed that variable cross-section was weak part of axle, and the weakest part was edge of inside wheel seat.

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备注/Memo

备注/Memo:
作者简介:李瑞霞(1962-),女,高级工程师,主要从事轨道工程车辆转向架的开发设计工作。
更新日期/Last Update: 2013-03-10