Affiliation:
1. National Environmental Protection Engineering and Technology Center for Road Traffic Noise Control, Beijing 100088, China
2. Research Institute of Highway Ministry of Transport, Beijing 100088, China
3. School of Automobile and Transportation Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China
Abstract
Electric vehicles, known for their low-noise emission, are popular and widespread in metropolises in China, and they provide an opportunity for a reduction in environmental noise from vehicles. To understand the noise from electric vehicles better, this study develops noise emission models considering speed, acceleration, and motion state. The model construction is based on the data collected from a pass-by noise measurement experiment in Guangzhou, China. The models describe a linear relationship between the noise level, the logarithm of speed, and the acceleration for multiple motion states (i.e., the constant-speed state, the acceleration state, and the deceleration state). From the spectrum analysis, the low-frequency noise is barely affected by the speed and acceleration, but the noise at a certain frequency is most sensitive to them. Compared to other models, the proposed ones have the highest accuracy and the greatest ability for extrapolation and generalization.
Funder
the National Environmental Protection Engineering and Technology Center for Road Traffic Noise Control, the Doctoral Point Construction Unit Research Capacity Enhancement Project
Science and Technology Planning Project of Guangzhou, China
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health
Cited by
3 articles.
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