车辆噪声对环境噪声的多普勒效应分析

2020 5th International Conference on Information Science, Computer Technology and Transportation (ISCTT) Pub Date : 2020-11-01 DOI:10.1109/isctt51595.2020.00112

Qian Zhao, Xintan Ma, Xiang Liu

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引用次数: 3

摘要

在建立交通噪声模型的过程中，很少考虑车辆噪声的多普勒效应。通过建立整车噪声辐射模型，利用MATLAB软件进行计算，分析了多普勒噪声的影响因素。根据不同道路两侧敏感点的分布特点，从理论上分析了不同车速和测点位置下多普勒效应对环境噪声的影响程度。结果表明:车速和测点在一定距离内的位置是多普勒噪声的主要影响因素;当车速低于67.0 km/h时，无论人们在何种道路上行驶，多普勒效应对环境噪声都没有影响。当车速高于67.0 km/h时，在城市道路上行驶时，多普勒效应对环境噪声的影响最大，影响幅度为2 dB;在高速公路上行驶时，多普勒效应对环境噪声的影响最大，影响幅度为3 dB。

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Analysis of Doppler Effect of Vehicle Noise on Environmental Noise

In the process of building traffic noise model, Doppler effect of vehicle noise is seldom considered. By establishing the noise radiation model of single vehicle and calculating with MATLAB software, the influencing factors of Doppler noise are analyzed. According to the distribution characteristics of sensitive points on both sides of different roads, the influence degree of Doppler effect on environmental noise under different speed and location of measuring points is theoretically analyzed. The results show that: vehicle speed and the location of measuring points within a certain distance are the main influencing factors of Doppler noise; when the vehicle speed is lower than 67.0 km/h, the Doppler effect has no effect on the environmental noise no matter what road people are driving on. When the vehicle speed is higher than 67.0 km/h, the Doppler effect has the greatest impact on the environmental noise by 2 dB when driving on the urban road, and has the greatest impact on the environmental noise by 3 dB when driving on the highway.

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来源期刊

2020 5th International Conference on Information Science, Computer Technology and Transportation (ISCTT)

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