城市轨道交通车辆车外辐射噪声关键影响参数研究
王兴文梁汝军
Study on the Key Influencing Parameters of Metro Train Exterior Radiation Noise
WANG XingwenLIANG Rujun
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作者信息:中车南京浦镇车辆有限公司，210031，南京
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Affiliation: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.2020.06.016
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中图分类号/CLCN:X839.1
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栏目/Col:研究报告
摘要:
以某城市轨道车辆为研究对象，对车辆主要噪声激励源进行调研，并基于几何声线法建立了车辆辐射噪声预测模型。以车辆主要噪声激励源调研结果作为输入，分析讨论了激励源大小对车辆车外辐射噪声影响的量化关系。研究表明:车辆车外辐射噪声受轮轨噪声激励源影响最显著(轮轨噪声每增大1 dB(A)，其辐射噪声增大约0.9~1 dB(A));齿轮箱噪声和牵引电机噪声，受电弓噪声受到的影响最小。
Abstracts:
Taking a rail transit vehicle as the research object, the noise excitation source is investigated. Based on the geometric ray acoustics method, a prediction model of exterior noise is established. Then, the investigation result of main noise sources is taken as the input, the quantitative relationship of the excitation source influence on metro train exterior radiation noise is analyzed. The results show that the train exterior radiation noise is significantly affected by wheel-rail noise, every 1 dB(A) increase of which will cause 0.9~1 dBA increase of the radiation noise. The next biggest noise impact comes from the gear box and traction motor, while pantograph noise has the least influence.
引文 / Ref:
王兴文，梁汝军.城市轨道交通车辆车外辐射噪声关键影响参数研究[J].城市轨道交通研究，2020，23（6）：68.
WANG Xingwen，LIANG Rujun.Study on the Key Influencing Parameters of Metro Train Exterior Radiation Noise[J].Urban mass transit，2020，23（6）：68.
WANG Xingwen，LIANG Rujun.Study on the Key Influencing Parameters of Metro Train Exterior Radiation Noise[J].Urban mass transit，2020，23（6）：68.
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