• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (23): 87-95.doi: 10.3901/JME.2025.23.087

• 机械动力学 • 上一篇    

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钢轨波磨对城轨车辆轴箱振动特性影响研究

于耀翔1, 郭亮1, 陈再刚2, 高宏力1, 张国立3   

  1. 1. 西南交通大学机械工程学院 成都 610031;
    2. 西南交通大学轨道交通运载系统全国重点实验室 成都 610031;
    3. 中车青岛四方车辆研究所有限公司 青岛 266031
  • 收稿日期:2024-03-05 修回日期:2025-03-14 发布日期:2026-01-22
  • 作者简介:于耀翔,男,1998年出生,博士研究生。主要研究方向为轨道交通车轨动力学建模与智能故障诊断。E-mail:yuyaoxiang@my.swjtu.edu.cn
    郭亮(通信作者),男,1988年出生,博士,教授,博士研究生导师。主要研究方向为轨道交通车辆状态评估、诊断与运维。E-mail:guoliang@swjtu.edu.cn
  • 基金资助:
    国家重点研发计划(2022YFB3402100);国家自然科学基金(52275134)资助项目

Investigation on the Effect of Rail Corrugation on Dynamic Vibration Characteristics of Urban Rail Vehicle Axle-box Bearings

YU Yaoxiang1, GUO Liang1, CHEN Zaigang2, GAO Hongli1, ZHANG Guoli3   

  1. 1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
    2. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031;
    3. CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd., Qingdao 266031
  • Received:2024-03-05 Revised:2025-03-14 Published:2026-01-22

摘要: 为了研究钢轨波磨对轴箱振动特性的作用机理,建立考虑轴箱轴承的车轨耦合动力学模型,采用模态叠加法将轮轴建模为柔性体,精确获取波磨激励下的轴箱振动响应以进行分析。仿真结果表明:轮轴奇数阶柔性模态幅值远远大于相邻偶数阶模态,在模态叠加过程中具有主导贡献;当无波磨激励时,柔性轮对与刚性轮对模型的轴箱振动幅值差异较小,而在波磨工况下柔性模型的垂向振动加速度峰值是刚性模型的1.48倍。一般来说,随着波长的减小或波深的增加,轴箱的振动响应呈现出更加剧烈的趋势,但由于波长会影响车辆的通过频率,考虑到轴箱轴承存在的固有频率,共振现象可能发生并加剧轴箱振动。

关键词: 轴箱轴承, 钢轨波磨, 柔性轮对, 车轨耦合动力学, 振动特性

Abstract: To study the mechanism of rail corrugation’s influence on axle-box vibration, a vehicle-track coupled dynamics model considering axle-box bearings is established. The wheelset is modeled as a flexible body using the modal superposition method to accurately capture the axle-box vibration response under rail corrugation excitation. Results indicate that the amplitude of odd-order flexible modes is significantly greater than that of adjacent even-order modes, playing a dominant role in the modal superposition process. Without rail corrugation excitation, the vibration amplitude difference between the flexible and rigid wheelset models is minimal. However, under rail corrugation conditions, the peak vertical vibration acceleration of the flexible model is 1.5 times that of the rigid model. Generally, as the wavelength decreases or the wave depth increases, the axle-box vibration response becomes more severe. However, since the wavelength affects the vehicle’s passing frequency, resonance may occur due to the axle-box bearing’s natural frequency, exacerbating the vibration.

Key words: axle-box bearing, rail corrugation, flexible wheelset, vehicle-track coupled dynamics, vibration characteristics

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