地铁车辆轮轨粗糙度对客室噪声的影响分析
刘长青
Impact Analysis of Metro Wheel-Rail Roughness on Vehicle Interior Noise
LIU Changqing
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作者信息:中车长春轨道客车股份有限公司，130011，长春
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Affiliation:CRRC Changchun Railway Vehicles Co.，Ltd.，130011，Changchun，China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.04.002
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中图分类号/CLCN:U270.1+6
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栏目/Col:研究报告
摘要:
以某地铁车辆为例，针对客室噪声偏大问题，进行现场测试分析，确定客室异常噪声特性与转向架区域声振传递规律；同时对比车轮镟修前后及钢轨打磨前后的客室噪声特性，分析轮轨粗糙度对客室噪声的影响。研究结果表明，地铁线路钢轨表面30~50 mm波磨是客室噪声异常的主要来源；钢轨粗糙度增大会明显加剧轮轨噪声的辐射，进而增大客室噪声。
Abstracts:
Taking a metro vehicle as an example，the problem of large interior noise is tested in the site. The characteristics of abnormal interior noise， the law of sound and vibration transmission in bogie area are detected. At the same time，the interior noise characteristics before and after the wheelupsetting and rail polishing are compared，the influence of wheel-rail roughness on interior noise is analyzed. The results show that the main source of abnormal interior noise is the 30~50mm corrugation of rail surface，and the increasing of rail roughness will significantly increase the radiation of wheelrail noise，and further affect interior noise.
引文 / Ref:
刘长青.地铁车辆轮轨粗糙度对客室噪声的影响分析[J].城市轨道交通研究，2020，23（4）：5.
LIU Changqing.Impact Analysis of Metro Wheel-Rail Roughness on Vehicle Interior Noise[J].Urban mass transit，2020，23（4）：5.
LIU Changqing.Impact Analysis of Metro Wheel-Rail Roughness on Vehicle Interior Noise[J].Urban mass transit，2020，23（4）：5.
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