地铁曲线波磨线路对车辆系统动力学性能的影响  

Influence of curved rail corrugation on the dynamic characteristics of metro systems

作　　者：何心蕾 李响 齐舒扬 任尊松[3] 邱奕霖 He Xinlei;Li Xiang;Qi Shuyang;Ren Zunsong;Qiu Yilin(School of Mechatronic Engineering,Jiangsu Normal University,Xuzhou 221116,Jiangsu,China;Department of Engineering Construction&Safety Management,Liaoning Urban&Rural Construction Group Co.,LTD,Shenyang 110006,Liaoning,China;School of Mechanical&Electronic Control Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]江苏师范大学机电工程学院,江苏徐州221116 [2]工程建设与安全管理部辽宁省城乡建设集团有限责任公司,辽宁沈阳110006 [3]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《江苏师范大学学报(自然科学版)》2025年第1期74-79,共6页Journal of Jiangsu Normal University:Natural Science Edition

基　　金：国家自然科学基金重点项目(U2368215);徐州市科技计划资助项目(KC22293);江苏省大学生创新创业项目(202310320108Y)。

摘　　要：利用多体动力学仿真软件Simpack建立曲线线路包含弹性轮对的地铁车辆-轨道系统动力学模型,研究不同特征波磨激励对轮轨作用力和磨耗的影响,以及系统垂向振动特性.结果表明:车辆通过直缓点且波深为0.20 mm时,轮轨作用力出现0值和超出安全限值的极值情况,车辆稳定性变差;当车辆通过圆曲线中段且波深为0.20 mm时,左侧车轮轮缘和右侧车轮踏面产生应力集中现象,接触应力最大值>材料屈服极限,导致轮轨磨耗加剧.波磨波长的变化使得车辆结构振动峰值范围发生变化,且短波长波磨激励导致振动峰值点能量变大,产生更加明显的共振现象.建议重点关注直缓点位置,控制波磨深度<0.14 mm,并及时对轨道线路进行检测和钢轨打磨.Simpack,a multibody dynamic simulation software was used to build a dynamic model of the subway vehicle-rail system including elastic wheelsets and curved tracks to study the effects of corrugation excitations with different characteristics on the wheel-rail contact forces and wear,and the vertical vibration characteristics of the system.The results indicated that:when the vehicle passed through the point of tangent to spiral with a corrugation depth of 0.20 mm,extreme values wheel-rail contact force such as zero and the values exceeding the safety limit appeared,leading to decreased stability of the vehicle;when the vehicle traversed the middle section of curved tracks with a corrugation depth of 0.20 mm,stress concentration was observed on the flanges of the left wheels and the treads of the right wheels,and the maximum contact stress surpassed the material yield limit,leading to increased wheel-rail wear.Then,it could be concluded that the variation of corrugation wavelength would cause a change in the peak value of structural vibration,and the excitation of short wavelength corrugation would led to an increase in the energy of the vibration peak,resulting in more obvious resonance phenomena.Therefore,it is recommended that the point of tangent to spiral should be the primary focus,the depth of corrugation should be controlled within 0.14 mm,and the track inspections and rail grinding should be conducted in time.

关 键 词：钢轨波磨 动力学性能 轮轨磨耗 振动特性 

分 类 号：U213.2[交通运输工程—道路与铁道工程]