高速列车风道消声器传声特性
孙艳红,张捷,韩健,高阳,肖新标
Sound transmission characteristics of silencer in wind ducts of high-speed train
Yan-hong SUN,Jie ZHANG,Jian HAN,Yang GAO,Xin-biao XIAO
表 1
车内噪声声压级总值
Tab.1
Overall level of interior sound pressure
状态
客室前
客室中
客室后
开空调
48.2
43.8
45.5
关空调
40.6
37.3
39.8
差 值
7.6
6.5
5.7