系统参数对高速列车车轮踏面凹陷磨耗的影响

黄彩虹; 罗仁; 曾京; 宋春元

doi:10.19818/j.cnki.1671-1637.2016.03.007

系统参数对高速列车车轮踏面凹陷磨耗的影响

doi: 10.19818/j.cnki.1671-1637.2016.03.007

黄彩虹^1,,
罗仁¹,
曾京¹,
宋春元^{1, 2}

1.
西南交通大学牵引动力国家重点实验室，四川成都 610031
2.
中车长春轨道客车股份有限公司，吉林长春 130062

基金项目:

国家自然科学基金项目 51475388

牵引动力国家重点实验室开放课题 TPL1307

中国铁路总公司科技研究开发计划项目 2014J008-B

详细信息

作者简介:
黄彩虹(1985-), 男, 四川乐山人, 西南交通大学助理研究员, 工学博士, 从事车辆系统动力学仿真与测试研究

中图分类号: U211.5
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出版历程
- 收稿日期: 2015-12-19
- 刊出日期: 2016-06-25

Effect of system parameters on tread-hollow wear of high-speed train wheels

1.
State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
2.
CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, Jilin, China

More Information

Author Bio:
HUANG Cai-hong(1985-), male, assistant researcher, PhD, +86-28-86466221, c_h_huang@126.com

摘要

摘要: 为了探明高速列车车轮踏面凹陷的原因, 建立了以车辆-轨道系统动力学模型与磨耗模型为一体的磨耗预测模型, 在轮轨法向接触中采用Herz接触理论进行接触斑形状和法向力分布的计算, 在轮轨切向接触中采用Kalker简化理论计算切向力, 采用Achard磨耗模型计算磨耗量。为了修正磨耗预测模型, 仿真分析了CRH₃型高速列车在武广线上运行时的车轮踏面磨耗形状, 并与实测车轮踏面磨耗形状进行了对比。为了得到与实测结果比较接近的磨耗规律, 考虑磨耗系数的不确定性, 在磨耗预测时初始的磨耗系数应除以10。利用修正的理论模型, 研究了钢轨型面、车轮型面、运行速度、轨道不平顺、线路条件、转向架结构和悬挂参数对高速列车车轮踏面磨耗规律的影响。研究结果表明: 车轮型面和钢轨型面影响车轮踏面磨耗位置、磨耗深度与磨耗宽度, 运行速度影响车轮踏面磨耗深度, 轨道不平顺影响车轮踏面磨耗深度和宽度, 线路曲线半径影响车轮踏面磨耗深度和宽度, 过高的运行速度、不合理的轮轨匹配关系和过高的轨道平直度容易引起车轮集中磨耗, 导致车轮踏面出现凹陷, 转向架悬挂和结构参数对踏面凹磨产生的影响较小。
- 高速列车 /
- 车轮 /
- 踏面凹磨 /
- 磨耗预测 /
- 动力学模型 /
- 轮轨接触
Abstract: In order to investigate the reasons of tread-hollow wear of high-speed train wheel, a wear prediction model was set up by coupling a vehicle-track system dynamics model to a wear model.In the wheel-rail normal contact, the shape of contact patch and the distribution of normal force were calculated by using Herz's contact theory.In the wheel-rail tangential contact, the tangential force was calculated by using Kalker's simplified theory.The wear loss was calculated by using Achard's wear model.To revise the wear prediction model, the wheel tread wear shape of CRH₃ high-speed train running on Wuhan-Guangzhou Line was simulated, and compared with the wear shape collected from field test.In order to get the wear law close to field test result, the uncertainty of wear coefficient was considered, and the initial wear coefficient should be divided by 10 in wear prediction.Based on the modified theory model, the effects of rail profile, wheelprofile, vehicle speed, track irregularity, line condition, the structure and suspension parameters of bogie on the tread wear law of high-speed train wheel were studied.Analysis result indicates that wheel and rail profiles affect the location, depth, and the width of wheel tread wear, vehicle speed affects the depth of wheel tread wear, track irregularity affects the depth and width of wheel tread wear, and line curve radius affects the depth and width of wheel tread wear.Too high vehicle speed, unreasonable wheel-rail matching relation, and too high track straightness will cause a centered wheel wear, and lead to tread-hollow wear.The suspension and structure parameters of bogie have little impact on tread-hollow wear.
- high-speed train /
- wheel /
- tread-hollow wear /
- wear prediction /
- dynamics model /
- wheel-rail contact

HTML全文

图 1 磨耗预测流程

Figure 1. Prediction process of wear

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图 2 车辆-轨道系统动力学模型

Figure 2. Vehicle-track system dynamics model

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图 3 接触斑椭圆

Figure 3. Ellipse of contact patch

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图 4 磨耗系数分布

Figure 4. Distribution of wear coefficient

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图 5 磨耗型面曲线的仿真和实测结果对比

Figure 5. Comparison of worn profile curves between simulation and field test results

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图 6 钢轨型面

Figure 6. Rail profiles

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图 7 不同钢轨型面的磨耗深度

Figure 7. Wear depths of different rail profiles

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图 8 车轮型面

Figure 8. Wheel profiles

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图 9 不同车轮型面的磨耗深度

Figure 9. Wear depths of different wheel profiles

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图 10 运行速度对车轮磨耗的影响

Figure 10. Effect of vehicle speed on wheel wear

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图 11 轨道谱

Figure 11. Track spectrums

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图 12 轨道不平顺对车轮磨耗的影响

Figure 12. Effect of track irregularity on wheel wear

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图 13 线路条件对车轮磨耗的影响

Figure 13. Effect of line condition on wheel wear

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图 14 一系纵向定位刚度对车轮磨耗的影响

Figure 14. Effect of primary longitudinal stiffness on wheel wear

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图 15 一系横向定位刚度对车轮磨耗的影响

Figure 15. Effect of primary lateral stiffness on wheel wear

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图 16 抗蛇行减振器动态刚度对车轮磨耗的影响

Figure 16. Effect of dynamic stiffness of anti-yaw damper on wheel wear

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图 17 轴距对车轮磨耗的影响

Figure 17. Effect of wheel base on wheel wear

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表 1 典型曲线分布

Table 1. Distribution of typical curves

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