噪声与振动控制2016，Vol.36Issue(2)：126-129,4.DOI:10.3969/j.issn.1006-1335.2016.02.028
地铁车辆车内噪声分布规律
Distribution Law of the Internal Noise in Metro Cars
薛红艳 1刘岩 1张晓排 1张晓娟 2张常宾3
作者信息
- 1. 大连交通大学 交通运输工程学院，辽宁 大连 116028
- 2. 大连科技学院 机械工程系，辽宁 大连 116052
- 3. 大连交通大学 教务处，辽宁 大连 116028
- 折叠
摘要
Abstract
The internal noise of Metro cars was measured by a noise and vibration test and analysis system. The internal noises in different positions of the car under the same operation condition were analyzed. The sound pressure levels (SPL) at each measurement point at different speeds were compared mutually. Based on the analysis, it was found that the main noise sources are the wheel-rail noise and vehicle accessories noises. The SPLs near the floor, the gangway and the door were 2 dB(A)-3 dB(A) higher than those at the other measurement points. The noise near the roof comes mainly from the mechanical vibration of the air handing unit (AHU) and the aerodynamic noise of the air supply outlet. In the high frequency range above 500 Hz, the SPL increases with the increasing of speed. When the vehicle is traveling on turnoff, the interior noise value is 15 dB(A) higher than that traveling on straight track and 4 dB(A) higher than that traveling on curved track. The results of the study have a certain reference value for the subway vehicle noise reduction design.关键词
声学/地铁车辆/噪声/测试/声压级/分布规律Key words
acoustics/subway car/noise/measurement/SPL/distribution law分类
交通工程引用本文复制引用
薛红艳,刘岩,张晓排,张晓娟,张常宾..地铁车辆车内噪声分布规律[J].噪声与振动控制,2016,36(2):126-129,4.
