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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第12卷    第5期    总第68期    2015年10月

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文章编号:1672-7029(2015)05-1200-05
铝合金地铁车内噪声测试及其响度分析
耿烽1,王玉国1,左言言2,温华兵2

(1. 南京工程学院汽车与轨道交通学院,江苏南京 211167;
2. 江苏大学振动噪声研究所,江苏镇江 212013
)

摘 要: 地铁车辆车内噪声直接影响旅客乘坐舒适性。掌握车内噪声特性,可以为地铁车辆车体结构声学设计及车内声学环境优化提供理论参考。依据标准测试不同运行速度下铝合金地铁车辆车内噪声,获得车内噪声频谱特性。根据能够反映主观听觉作用的心理声学理论,进行车内噪声特性响度分析,比较声压和响度评价车内噪声的差异,并在此基础上提出车内降噪的频率范围。

 

关键字: 地铁车辆;车内噪声;频谱特性;响度

Test and loudness analysis of interior noisefor the aluminum alloy metro vehicle
GENG Feng1,WANG Yuguo1,ZUO Yanyan2,WEN Huabing2

1.School of Automotive and Rail Transit, Nanjing Institute of Technology, Nanjing211167, China;
2. Institute of Vibration and Noise, Jiangsu University, Zhenjiang212013, China

Abstract:Metro vehicle interior noise affects the comfort of passengers directly. Mastering the interior noise characteristics can give theoretical reference to car body structure acoustic design and interior acoustic environment optimization for metro vehicles. In reference of the national standards,the interior noise of the aluminum alloy metro vehicle were tested at different speed to gain the interior noise spectrum characteristics. According to psychoacoustical theories which can reflect the subjective audition and loudness characteristics of interior noise of the tested metro vehicle. And the difference of assessing the interior noise between the sound level and the loudness level were compared. The suitable frequency range of noise reduction was suggested.

 

Key words: metro vehicle;interior noise;spectrum characteristics;loudness

ISSN 1672-7029
CN 43-1423/U

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