摘要
用B&K 2250手持式精密噪声分析仪,对跨坐式独轨列车运行时产生的噪声进行信号采集及分析,得到其传播规律、频谱等特性,并与普通轮轨噪声进行对比。结果表明重庆独轨列车低频部分声能量较小,对比普通的B型轮轨列车,跨坐式独轨列车的噪声值明显较低。
B＆K 2250 handheld precision noise analyzer is used to measure the noise data of cross-type monorail train, then the noise propagation pattern and the spectrum are gained as well. The results show that low-frequency part of the energy of the Chongqing monorail train noise is small. Compared to that of B-type wheel-rail train, the noise level of cross-sit-monorail train is significantly lower at the same speed.
出处
《噪声与振动控制》
CSCD
2012年第5期76-78,130,共4页
Noise and Vibration Control
基金
城际高速铁路噪声特性及其预测模型研究(北京市科学技术研究院萌芽计划:B122)
关键词
声学
噪声特性
对比
跨坐式独轨
acoustics
noise characteristic
contrast
cross-sit- monorail train
