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

杨新文;翟婉明;和振兴

振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 143-147,.

PDF(1755 KB)
PDF(1755 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 143-147,.
论文

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

  • 杨新文1,2; 翟婉明2; 和振兴3
作者信息 +

An investigation into wheel/rail impact noise generation due to high speed train passing over rail weld joints

  • YANG Xin-wen1,2;, ZHAI Wan-ming2; HE Zhen-xing3
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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1250~3000Hz范围内。钢轨凹陷型焊缝引起的轮轨冲击噪声主要集中在400~1250Hz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。

Abstract

In order to reduce greatly wheel/rail impact noise generation due to a wheel passing over the rail joints, seamless rails are widely used in high speed railway. But, because of low quality of rail weld and performance difference between welding materials and rail material, wheel/rail noise will be 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 the wheel-rail impact noise, based on vehicle-track coupled dynamics, random vibration theory and acoustics radiation theory, a model is developed to calculate the wheel/rail impact noises when a train passes over the rail weld joints. The result shows that the energy of wheel/rail impact noise generation due to rail weld boss concentrate in the frequency range of 1250~3000Hz, whereas the wheel/rail impact noise due to low rail weld joints concentrate in the frequency range of 400~1250Hz. With wavelength of rail weld shortwave irregularity increases, the maximum of wheel-rail noise level has been reduced. With wave depth of rail weld shortwave irregularity increases, the maximum of wheel-rail noise level has been increased.

关键词

高速列车 / 耦合动力学 / 钢轨焊缝 / 振动 / 轮轨噪声

Key words

high speed train / coupled dynamics / rail weld / vibration / wheel/rail noise

引用本文

导出引用
杨新文;翟婉明;和振兴. 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[J]. 振动与冲击, 2011, 30(7): 143-147,
YANG Xin-wen;;ZHAI Wan-ming;HE Zhen-xing. An investigation into wheel/rail impact noise generation due to high speed train passing over rail weld joints[J]. Journal of Vibration and Shock, 2011, 30(7): 143-147,

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