钢弹簧浮置板轨道焊接接头处钢轨波磨研究Ⅰ：初始演化

doi:10.3901/JME.2023.08.245

机械工程学报 ›› 2023, Vol. 59 ›› Issue (8): 245-252.doi: 10.3901/JME.2023.08.245

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钢弹簧浮置板轨道焊接接头处钢轨波磨研究Ⅰ：初始演化

李霞^1,2, 吴磊³, 温泽峰⁴, 金学松⁴, 王安斌¹

1. 上海工程技术大学城市轨道交通学院上海 201620;
2. 西南交通大学高速铁路线路工程教育部重点实验室成都 610031;
3. 西南交通大学机械工程学院成都 610031;
4. 西南交通大学牵引动力国家重点实验室成都 610031

收稿日期:2022-05-06 修回日期:2022-09-28 出版日期:2023-04-20 发布日期:2023-06-16
作者简介:李霞,女,1986年出生,博士,副研究员。主要研究方向为轮轨关系、车辆轨道动力学和轨道减振降噪。E-mail:xiali20034164@126.com
基金资助:
国家自然科学基金(52002343); 四川省科技计划(2020YJ0034); 西南交通大学高速铁路线路工程教育部重点实验室开放研究基金资助项目;

Study on the Rail Corrugation at Weld Joint of Steel Spring Floating Slab Track I: Initial Evolution

LI Xia^1,2, WU Lei³, WEN Ze-feng⁴, JIN Xue-song⁴, WANG An-bin¹

1. School of Urban Railway Transportation, Shanghai University of Engineering Science, Shanghai 201620;
2. Ministry of Education Key Laboratory of High-speed Railway Engineering,Southwest Jiaotong University, Chengdu 610031;
3. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
4. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031

Received:2022-05-06 Revised:2022-09-28 Online:2023-04-20 Published:2023-06-16

摘要/Abstract

摘要： 现场调查测试某地铁钢弹簧浮置板直线轨道上焊接接头附近的初始波磨,其特征波长为250~600 mm,距离钢轨内侧20 mm处的波磨比30 mm和40 mm处严重。基于刚柔耦合的地铁车辆-钢弹簧浮置板轨道动力学模型、Kalker的三维非赫兹滚动接触模型、材料磨损模型和磨耗叠加模型,建立地铁车辆-浮置板轨道钢轨波磨计算模型,以此分析计算了凹形焊接接头处波磨的初始演化规律。数值仿真结果表明,波磨演化过程中不同阶段左右轨波磨特征波长存在差异;随着波磨的不断发展,左右轨波磨特征波长基本统一;理论仿真波长与现场实测波长相吻合;距离钢轨内侧较近区域的磨耗更严重,这一现象与现场调查情况一致。该项研究为钢弹簧浮置板直线轨道上焊接接头处波磨的预防与控制提供重要的理论基础。

关键词: 钢轨波磨, 钢弹簧浮置板轨道, 焊接接头, 波长, 磨耗

Abstract: Filed observations and measurements are carried out to obtain the characteristic of the initial corrugation at welded joint on the straight line of steel spring floating slab track in a metro. The wavelength is 250-600 mm. The corrugation at 20 mm from the gauge-side of rail is more serious than that at 30 mm and 40 mm. A rail corrugation model based on steel spring floating slab track is put forward, in which a rigid-flexible metro vehicle-floating slab track model, Kalker's non-Hertzian rolling contact theory,material wear model and wear accumulation model are combined. The initial evolution of rail corrugation in the vicinity of concave weld joint is analyzed. The obtained results show that the corrugation wavelengths of left and right rail are different at different stages in the long-term evolution. With the development of corrugation, the wavelengths of left and right rail are basically identical. The simulation results are in good agreement with filed measured wavelengths. The wear in the area near the gauge-side of rail is serious.This phenomenon is consistent with the field investigation. The study can provide an important theoretical basis for the prevention and control of corrugation at weld joint on the straight line of steel spring floating slab track.

Key words: rail corrugation, steel spring floating slab track, weld joint, wavelength, wear

中图分类号:

U260

李霞, 吴磊, 温泽峰, 金学松, 王安斌. 钢弹簧浮置板轨道焊接接头处钢轨波磨研究Ⅰ：初始演化[J]. 机械工程学报, 2023, 59(8): 245-252.

LI Xia, WU Lei, WEN Ze-feng, JIN Xue-song, WANG An-bin. Study on the Rail Corrugation at Weld Joint of Steel Spring Floating Slab Track I: Initial Evolution[J]. Journal of Mechanical Engineering, 2023, 59(8): 245-252.

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钢弹簧浮置板轨道焊接接头处钢轨波磨研究Ⅰ：初始演化

Study on the Rail Corrugation at Weld Joint of Steel Spring Floating Slab Track I: Initial Evolution

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