噪声与振动控制2019，Vol.39Issue(3)：107-112,6.DOI:10.3969/j.issn.1006-1355.2019.03.021
弹性扣件对列车车内噪声声品质的影响
Influence of Elastic Fasteners on the Sound Quality of Vehicle’s Interior Noise
谢蓥松 1李莉 2鞠龙华 1王安斌1
作者信息
- 1. 上海工程技术大学 城市轨道交通学院,上海 201620
- 2. 同济大学 城市铁道与轨道交通研究院,上海 201804
- 折叠
摘要
Abstract
In order to analyze the influence of the elastic fasteners on the sound quality of vehicle’s interior noise, the vehicle interior noises in different positions are tested in the elastic fastener sections and the general fastener sections at different speeds of trains, and evaluated by different objective evaluation parameters of sound quality. Then, the vehicle interior sound qualities in the elastic fastener sections and the general fastener sections are mutually compared and analyzed. The results show that when the speed is less than 40 km/h, the low and mid frequency interior noise holds the dominant position and should be the focus of the vehicle interior noise reduction. The A-weighted sound pressure level, loudness, psychoacoustic annoyance and speech interference level of the vehicle’s interior noise in the elastic fastener section are higher than those in the general fastener section, while the sharpness and roughness in the elastic fastener section are lower than those in the general fastener section. There is little difference of the fluctuation intensity in the two sections. The elastic fastener has great influence on the sound pressure level, loudness, and speech interference level of the noise at the junction and the ends of the carriage, while it has little influence on the sharpness, fluctuation intensity, roughness and psychoacoustic annoyance of the noise at the above positions. And the elastic fastener has little influence on the objective evaluation parameters of the sound quality in the driver’s cab and at the middle of the car body.关键词
声学/弹性扣件/普通扣件/车内噪声/声品质/客观评价参数Key words
acoustics/ elastic rail fastener/ general rail fastener/ interior noise/ sound quality/ objective evaluation parameters分类
交通工程引用本文复制引用
谢蓥松,李莉,鞠龙华,王安斌..弹性扣件对列车车内噪声声品质的影响[J].噪声与振动控制,2019,39(3):107-112,6.
