• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (20): 274-282.doi: 10.3901/JME.2025.20.274

• 运载工程 • 上一篇    

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基于Hilbert-Huang变换的高速铁路轨道短波不平顺识别研究

周素霞1,2, 辛欣1,2, 曲直1,3   

  1. 1. 北京建筑大学机电与车辆工程学院 北京 100044;
    2. 北京建筑大学城市轨道交通车辆服役性能保障北京市重点实验室 北京 100044;
    3. 内蒙古第一机械集团有限公司 包头 014030
  • 收稿日期:2024-11-07 修回日期:2025-05-11 发布日期:2025-12-03
  • 作者简介:周素霞,女,1971年出生,博士,教授,硕士研究生导师。主要研究方向为结构的疲劳与断裂、金属材料的微观损伤、车辆系统动力学。E-mail:sxzhou1971@163.com
    辛欣(通信作者),女,1993年出生。博士、硕士研究生导师。主要研究方向为轨道-车辆系统动力学。E-mail:xinxin@bucea.edu.cn
    曲直,男,1995年出生。主要研究方向为结构的疲劳与断裂、车辆系统动力学。E-mail:396828028@qq.com
  • 基金资助:
    北京市自然科学基金资助项目(L211007)。

Research on Recognition of Shortwave Irregularity of High Speed Railway Track Based on Hilbert-Huang Transform

ZHOU Suxia1,2, XIN Xin1,2, QU Zhi1,3   

  1. 1. School of Mechanical-Electronic and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044;
    2. Beijing Key Laboratory of Service Performance of Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044;
    3. Inner Mongolia First Machinery Group Co., LTD., Baotou 014030
  • Received:2024-11-07 Revised:2025-05-11 Published:2025-12-03

摘要: 高速列车运行时,短波不平顺是产生车辆噪声和改变轮轨相互作用力的主要原因之一。轴箱加速度可以反映短波不平顺引起的高频振动响应。结合轴箱加速度,提出基于Hilbert-Huang变换的高速铁路轨道短波不平顺识别方法。构建高频轮轨接触仿真模型,通过Matlab程序对仿真模型施加周期性短波不平顺,获得其动力学响应。对仿真模型轴箱加速度信号进行经验模态分解(Empirical mode decomposition, EMD)并结合边际谱分析确定符合不平顺特征频率的本征模态函数(Intrinsic mode function,IMF)分量,对IMF分量进行Hilbert谱分析获取不平顺位置和波长信息。通过实测轴箱加速度数据对该方法进行验证,将识别结果与现场路段轨道检测的实际情况进行对比。结果表明,高频轮轨接触仿真模型能够有效地输出周期性短波不平顺条件下的动力学响应。基于Hilbert-Huang变换的高速铁路轨道周期性短波不平顺识别方法,能够有效地获取短波不平顺位置和波长信息,识别出的短波不平顺位置和波长与实测情况相符,对周期性短波不平顺的识别具有一定指导意义。

关键词: Hilbert-Huang变换, 经验模态分解, 短波不平顺, 时频分析, 轴箱加速度

Abstract: When the high-speed train is running, the short-wave irregularity is one of the main reasons to produce vehicle noise and change the wheel-rail interaction force. The high frequency vibration response can be reflected on the axle box acceleration caused by short-wave irregularity. Combined with axle box acceleration, a short-wave irregularity identification method of high-speed railway track based on Hilbert-Huang transform is proposed. The periodic shortwave irregularity is applied to the simulation model by Matlab program, and its dynamic response is obtained. Empirical mode decomposition of axle box acceleration signal of simulation model and the intrinsic mode function (IMF) which accords with the characteristic frequency of irregularity is determined by marginal spectrum analysis. The IMF components is analyzed by Hilbert spectrum to obtain the irregularity position and wavelength information. The method is verified by the measured axle box acceleration data, and the identification results are compared with the actual situation of track detection on the road section. The results show that the dynamic response can be effectively output by the high frequency wheel-rail contact simulation model under the condition of periodic shortwave irregularity. The position and wavelength information of shortwave irregularity can be effectively obtained by the recognition method of periodic shortwave irregularity of high-speed railway track based on Hilbert-Huang transform, and the identified position and wavelength of shortwave irregularity are consistent with the measured results, which has a certain guiding significance for the identification of periodic shortwave irregularity.

Key words: Hilbert-Huang transform, empirical mode decomposition, shortwave irregularity, time-frequency analysis, axle box acceleration

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