高速列车通过钢轨焊接接头时引起的轮轨冲击噪声的研究

英文篇名：Wheel/rail impact noise generation due to high speed train passing over rail weld joints
中文刊名：振动与冲击
英文刊名：Journal of Vibration and Shock
作者：杨新文 ; 翟婉明 ; 和振兴
英文作者：YANG Xin-wen 1 ; 2 ; ZHAI Wan-ming2 ; HE Zhen-xing3(1.School of Mechatronic Engineering ; Lanzhou Jiaotong University ; Lanzhou Gansu 730070 ; China ; 2.Traction Power State Key Laboratory ; Southwest Jiaotong University ; Chengdu 610031 ; China ; 3.Metro Design and Research Institute of China Railway Eryuan Engineering Group Co.Ltd. ; Chengdu 610031 ; China)
中文关键词：高速列车 ; 耦合动力学 ; 钢轨焊缝 ; 振动 ; 轮轨噪声
英文关键词：high speed train ; coupled dynamics ; rail weld ; vibration ; wheel/rail noise
出版日期：2011-07-25
机构：兰州交通大学机电工程学院;西南交通大学牵引动力国家重点实验室;中铁第二勘察设计院集团有限公司地铁分院;
年：2011
期：07
出版单位：振动与冲击

摘要

高速铁路采用无缝钢轨铺设,大大地降低了轮轨通过钢轨接头时产生的轮轨冲击噪声。但是由于焊接钢轨时工艺不良和焊接材料与钢轨材料间存在性能差异等原因,车轮滚过这些焊接接头时产生的轮轨噪声远大于其它地方。为了探明钢轨焊接接头对轮轨噪声的影响,综合运用车辆-轨道耦合动力学理论、随机振动理论和声辐射理论建立了轮轨噪声预测模型,计算分析了高速列车通过钢轨焊接接头时的轮轨噪声。研究结果表明:焊缝凸台引起的轮轨冲击噪声主要集中在1 250 Hz～3 000 Hz范围内。钢轨凹陷型焊缝引起的轮轨冲击噪声主要集中在400 Hz～1 250Hz范围内。钢轨焊缝处短波不平顺波长增大,轮轨噪声声级最大值有所减小;短波不平顺波深增大,轮轨噪声声级最大值有所增大。
In order to reduce greatly wheel/rail impact noise generation due to a wheel passing over rail joints,seamless rails are widely used in high speed railway.But,because of lower quality of rail welding and performance difference between welding material and rail one,wheel/rail noise is generated more severely when a wheel passing over these rail weld joints than the other places.To explore the influence of rail weld joints on wheel rail impact noise,based on vehicle-track coupled dynamics,random vibration theory and acoustic radiation theory,a model was developed to calculate wheel/rail impact noises when a train passes over rail weld joints.The result showed that the energy of wheel/rail impact noise due to rail weld boss concentrates in the frequency range of 1250～3000Hz;whereas the wheel/rail impact noise due to lower rail weld joints concentrates in the frequency range of 400～1250Hz;as the wavelength irregularity of rail weld shortwave increases,the maximum of wheel rail noise level is reduced;as the wave depth irregularity of rail weld shortwave increases,the maximum of wheel rail noise level is increased.

引文

[1]Ver I L,Ventres C S,Myles MM.Wheel/rail noise,partⅡ:impact noise generation by wheel and rail discontinuities[J].Journal of Sound and Vibration.1976,46:395-417.
    [2]Remington P J.Wheel/rail squeal and impact noise:what dowe know?what don’t we know?Where Do We Go fromHere?[J].Journal of Sound and Vibration.1985,116:339-353.
    [3]Wu T X,Thompson D J.A hybrid model for the noisegeneration due to railway wheel flats[J].Journal of Soundand Vibration.2002,251:115-139.
    [4]Wu TX,Thompson D J.On the impact noise generation dueto a wheel passing over rail joints[J].Journal of Sound andVibration.2003,267:485-496.
    [5]徐志胜,翟婉明.轮轨冲击噪声激扰模型[J].噪声与振动控制,2007,4:86-90.
    [6]杨新文,翟婉明。车轮扁疤激起的轮轨冲击噪声研究[J],振动与冲击,2009,28(8):22-26.
    [7]Yang X,Zhai W,Yang J.Prediction for wheel/rail impactnoise in Chinese speed-raised railway[C]//.InternationalSymposium on Speed-up,Safety and Service Technology forRailway and Maglev Systems.Niigata:Japan Society ofMechanical Engineers press,2009.
    [8]翟婉明.车辆—轨道耦合动力学[M].第三版,北京:中国科学出版社,2007.
    [9]林家浩.随机地震响应功率谱快速算法[J].地震工程与工程振动,1990,10(4):38-46.
    [10]雷晓燕,圣小珍著.铁路交通噪声与振动[M].北京:科学出版社,2004.
    [11]徐志胜.轨道交通轮轨噪声预测与控制研究[D].成都:西南交通大学,2004.
    [12]杨新文.高速铁路轮轨噪声理论计算与控制研究[D].成都:西南交通大学,2010.
    [13]Thompson D J,Vincent N.Track dynamic behaviour at highfrequencies.Part 1:Theoretical models and laboratorymeasurements[J].Vehicle System Dynamics.1995,24(Suppl.):86-99.