刚/柔轮轨下钢轨波磨对牵引齿轮振动特性影响  

Influence of Rail Corrugation on Vibration Characteristics of Traction Gears Under Rigid/Flexible Wheel and Rail Action

作　　者：朱海燕[1,2] 杨世俊 曾庆涛 金铭泽 ZHU Haiyan;YANG Shijun;ZENG Qingtao;JIN Mingze(State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure,East China Jiaotong University,Nanchang 330013,China;Key Laboratory of Conveyance Equipment,State Ministry of Education,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学轨道交通基础设施性能监测与保障国家重点实验室,南昌330013 [2]华东交通大学载运工具与装备教育部重点实验室,南昌330013

出　　处：《噪声与振动控制》2025年第2期157-162,304,共7页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(52162045);江西省自然科学基金面上重点资助项目(20232ACB204022);江西省自然科学基金面上资助项目(20224BAB204040);载运工具与装备教育部重点实验室自主课题资助项目(KLCEZ2022-11);研究生创新资金资助项目(YC2022-s520)。

摘　　要：为研究钢轨波磨对高速列车牵引齿轮振动特性的影响,采用谐波函数描述钢轨波磨不平顺,研究在钢轨波磨波长为100~150 mm、波深为0.01~0.05 mm下牵引齿轮的振动响应特性。应用傅里叶变换得到牵引齿轮振动加速度频谱,发现钢轨波磨激励是影响牵引齿轮振动响应的关键因素。结果表明:随着钢轨波磨波长的减小、波深的增加会使主动齿轮垂向振动加速度增大,主动齿轮垂向振动加速度峰值变化周期与钢轨波磨波长和轮对转动周期成正相关;柔性轮轨下的主动齿轮垂向振动加速度幅值相比于刚性轮轨明显增大,在钢轨波磨和车轮转频共同作用下,考虑柔性轮轨时的主动齿轮垂向振动加速度幅值会出现拍振现象,且能反映出轮轨激励高频成分和较高频率内的振动响应。In order to study the influence of rail corrugation on the vibration characteristics of traction gears of highspeed trains,the harmonic function was used to describe the rail corrugation irregularity,and the vibration response characteristics of traction gears under the rail corrugation wavelength of 100-150 mm and the wave depth of 0.01-0.05 mm were studied.The Fourier transform was used to obtain the vibration acceleration spectrum of the traction gear.It was found that the rail corrugation excitation is the key factor affecting the vibration response of the traction gear.The results show that the vertical vibration acceleration of the driving gear increases with the decrease of the rail corrugation wavelength and the increase of the wave depth.The change period of the vertical vibration acceleration peak of the active gear is positively correlated with the rail corrugation wavelength and the rotation period of the wheelset.The vertical vibration acceleration amplitude of the active gear under the flexible wheel-rail action is much larger than that under the rigid wheel-rail action.Under the combined action of rail corrugation and wheel rotation frequency,beat vibration phenomenon will appear for the vertical vibration acceleration amplitude of the active gear considering the flexible wheel-rail,which can reflect the high frequency component of wheel-rail excitation and the vibration response in higher frequency range.

关 键 词：振动与波 高速列车 牵引齿轮 钢轨波磨 振动响应 幅频特性 

分 类 号：U270.1[机械工程—车辆工程]