地铁车辆曲线运行车内噪声影响因素的试验分析
付国平1邢海福1郭正海1吴亮1潘越1潘敏凯2
Experimental Analysis of Factors Affecting Vehicle Interior Noise during the Curve Operation of Metro Vehicles
FU Guoping1XING Haifu1GUO Zhenghai1WU Liang1PAN Yue1PAN Minkai2
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作者信息:1.杭州地铁运营有限公司，310017，杭州
2.中车南京浦镇车辆有限公司，210031，南京
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Affiliation:1.Hangzhou Metro Operation Co., Ltd., 310017, Hangzhou, China
2.CRRC Nanjing Puzhen Co., Ltd., 210031, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.10.029
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中图分类号/CLCN:U211.5; U213.2+3； TB533+.2
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栏目/Col:研究报告
摘要:
［目的］针对地铁车辆在曲线线路上运行时车内噪声较大的问题，需对其影响因素开展深入研究。［方法］通过对线路上部分直线与曲线区间位置的钢轨以及被试车辆的车轮表面进行粗糙度测试分析，同时采集曲线轨道位置在钢轨打磨前后相应的车辆转向架区域与车内噪声。［结果及结论］研究发现车轮粗糙度在某些波长范围超出标准ISO3095:2013Acoustics—Railwayapplications—Measurementofnoiseemittedbyrailboundvehicles约3dB(A)，而曲线区间内轨的钢轨粗糙度超出高达20dB(A)以上，直线段钢轨粗糙度满足标准，打磨后该地铁转向架区域与车内噪声显著降低。此外,在两个曲线半径均为300m的“S”形曲线区间，安装了轨顶摩擦调节装置，测试对比研究结果表明，通过该装置改善过曲线时的轮轨表面润滑状态，使得轮轨振动噪声下降，地铁车内噪声在一定程度上有所降低，第二个曲线处车内噪声下降达3dB(A)。因而，在轨道小曲线位置，综合采取钢轨打磨以及改善轮轨润滑状态策略，可降低地铁车辆在过曲线时的车内噪声。
Abstracts:
［Objective］ In view of the high vehicle interior noise problem when running on curved lines, it is necessary to carry out in-depth research on its influencing factors. ［Method］ Roughness test and analysis of the wheel-rail surface of the tested vehicles in the track straight and curved sections are carried out. At the same time, the corresponding vehicle bogie area noise and vehicle interior noise at the curved track position before and after rail grinding are collected. ［Result & Conclusion］ The study reveals that the wheel roughness exceeds the standard ISO 3095:2013 Acoustics—Railway applications—Measurement of noise emitted by railbound vehicles by approximately 3 dB (A) in certain wavelength ranges, while the roughness of the inner rail of the curved section exceeds by more than 20 dB (A), the rail roughness of the straight section could meet the standard. After grinding, the bogie area noise and vehicle interior noise are significantly reduced. In addition, rail top friction adjustment devices are installed in two S-curve sections with a radius of 300 m. Research results of the comparative tests indicates that the device improves the lubrication conditions between the wheel and rail surfaces when passing the curve, reduces the wheel-rail vibration noise. The vehicle interior noise is also reduced to a certain extent by 3 dB(A) at the second curve. Therefore, in the small curve position of the track, the comprehensive strategy of rail grinding and wheel-rail lubrication state improving can reduce the vehicle interior noise when passing curves.
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