中低速磁浮列车车外噪声特性及声源贡献测试分析
赵新利贾尚帅彭垒潘德阔
Characteristics and Source Contribution Test Analysis of Low-medium Speed Maglev Train Exterior Noise
ZHAO XinliJIA ShangshuaiPENG LeiPAN Dekuo
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作者信息:中车唐山机车车辆有限公司，064099，唐山
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Affiliation:CRRC Tangshan Co., Ltd., 064099, Tangshan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.01.017
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中图分类号/CLCN:TB533.2U266.4
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栏目/Col:研究报告
摘要:
通过现场测试，对磁浮列车的车外噪声进行了测量。对比分析了磁浮列车外部噪声与地铁列车车外噪声的特性差异。基于声线追踪法，建立了磁浮列车的车外噪声仿真模型，并与试验结果进行了对比验证。基于该仿真模型分析了磁浮列车的车外噪声贡献。研究结果表明，当列车运行速度为60 km/h时，磁浮列车的车外噪声比地铁列车低5 dB(A)左右，其车外噪声贡献主要来自于受电靴/供电轨系统，显著贡献分布在200~5 000 Hz频带。
Abstracts:
Through field tests, exterior noise of maglev train is measured. The exterior noise characteristic difference between a maglev train and a metro train is compared and analyzed. Based on sound ray tracing method, a simulation model of maglev train exterior noise is established and comparatively verified with the experimental results. Based on mentioned simulation model, the contribution of maglev train exterior noise is analyzed. Research results show that the exterior noise of maglev train is about 5 dB(A) lower than that of metro train when train running speed is at 60 km/h, and its contribution mainly comes from the collector shoe and power rail system, and the noise significant contributions are distributed in 200 to 5 000 Hz frequency band.
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