两种典型动车组车轮磨耗演变规律及其动力学影响研究

doi:10.3901/JME.2022.04.191

机械工程学报 ›› 2022, Vol. 58 ›› Issue (4): 191-201.doi: 10.3901/JME.2022.04.191

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两种典型动车组车轮磨耗演变规律及其动力学影响研究

侯茂锐^1,2, 陈秉智², 成棣¹, 胡晓依¹, 孙丽霞¹

1. 中国铁道科学研究院集团有限公司铁道科学技术研究发展中心北京 100081;
2. 大连交通大学机车车辆工程学院大连 116021

收稿日期:2021-03-31 修回日期:2021-08-21 出版日期:2022-02-20 发布日期:2022-04-30
通讯作者: 侯茂锐(通信作者),男,1985年出生,博士研究生,副研究员。主要研究方向为铁道机车车辆动力学及轮轨关系研究。E-mail:houmaorui@126.com
基金资助:
国家自然科学基金高铁联合基金(U1734201)、中国铁路总公司科技研究开发计划课题(2017J003-B)和中国铁道科学研究院集团有限公司科技研究开发计划课题(2019YJ162)资助项目。

Two Typical Wheel Wear Evolution Characteristics and Its Influence on Dynamic Performance of High-speed EMU

HOU Maorui^1,2, CHEN Bingzhi², CHENG Di¹, HU Xiaoyi¹, SUN Lixia¹

1. Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing 100081;
2. College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian 116021

Received:2021-03-31 Revised:2021-08-21 Online:2022-02-20 Published:2022-04-30

摘要/Abstract

摘要： 为对比不同线路、相同平台动车组车轮磨耗演变规律及其对动车组动力学性能的影响，对速度等级250 km/h的A、B两条高速线路上运行的同平台动车组车轮磨耗进行长期跟踪测试。将实测车轮踏面与实测钢轨廓形匹配，对比分析车轮磨耗对等效锥度、接触点分布等轮轨接触几何关系的影响。利用多体动力学软件建立动车组拖车动力学仿真模型，研究车轮磨耗演变规律对动车组动力学性能及轮轨滚动接触疲劳损伤的影响。研究结果表明，A线路车轮平均磨耗速率为0.05 mm/万km，踏面磨耗分布在-20～30 mm范围内，呈现凹形磨耗；等效锥度增大速率约为0.006/万km；轮轨接触点逐渐向钢轨轨肩处靠拢，存在明显跳跃现象。B线路车轮平均磨耗速率约为0.025 mm/万km，踏面磨耗分布在-35～50 mm范围内，磨耗分布较均匀；等效锥度稳定在0.03左右，随运营里程的增大没有明显的变化趋势，轮对横移量在10 mm以内的轮轨接触点始终保持车轮踏面中部与钢轨轨顶中部接触，轮轨接触点分布均匀。随着运行里程的逐渐增大，A线路的动力学性能略有下降，B线路的动力学性能基本稳定。B线路的车轮表面疲劳指数小于A线路，车轮发生滚动接触疲劳裂纹的可能性较小。

关键词: 动车组, 车轮磨耗, 轮轨接触关系, 动力学性能, 滚动接触疲劳

Abstract: In order to compare the wheel wear evolution characteristics on different lines and its influence on the dynamic performance of EMUs, the wheel wear of EMUs on the same platform running on two high-speed lines A and B with a speed grade of 250 km/h was tested for a long time. Matching the measured wheel tread with the measured rail profile, the influence of wheel wear on the contact geometric interaction such as equivalent conicity, wheel-rail contact point distribution is compared and analyzed. A vehicle dynamic model was established by the multibody dynamic analysis software SIMPACK to study the evolution of vehicle dynamic performance and rolling contact fatigue damage with the evolution of wheel wear. The results indicated that the average wheel wear rate of line A was 0.05 mm/10 000 km, the tread wear was distributed in the range of -20～30 mm, showing hollow. The increase rate of equivalent conicity was about 0.006/10 000 km, as well as the wheel-rail contact point gradually draws close to the rail shoulder and there is obvious jumping phenomenon. The average wheel wear rate of B line was about 0.025 mm/ 10 000 km, which was distributed in the range of -35～50 mm was uniformly distributed. The equivalent conicity was stable at about 0.03, and there was no obvious change trend with the increase of operating mileage. The wheel-rail contact points within 10 mm always keeped the middle wheel tread in contact with the middle rail top, and the wheel-rail contact points were uniformly distributed. With the gradual increase of operating mileage, the dynamic performance of A line decreased slightly, while the dynamic performance of B line was basically stable. The wheel surface fatigue index of line B was less than the line A, so the possibility of rolling contact fatigue crack is less.

Key words: high-speed EMU, wheel wear, wheel-rail contact interaction, dynamic performance, rolling contact fatigue

中图分类号:

U211

侯茂锐, 陈秉智, 成棣, 胡晓依, 孙丽霞. 两种典型动车组车轮磨耗演变规律及其动力学影响研究[J]. 机械工程学报, 2022, 58(4): 191-201.

HOU Maorui, CHEN Bingzhi, CHENG Di, HU Xiaoyi, SUN Lixia. Two Typical Wheel Wear Evolution Characteristics and Its Influence on Dynamic Performance of High-speed EMU[J]. Journal of Mechanical Engineering, 2022, 58(4): 191-201.

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两种典型动车组车轮磨耗演变规律及其动力学影响研究

Two Typical Wheel Wear Evolution Characteristics and Its Influence on Dynamic Performance of High-speed EMU

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