提速列车车厢内噪声、振动改变的探讨  

The Inquire on Change of Noise and Vibration in Increase speed Passenger Train

作　　者：乔玲[1] 马筠[1] 张秀华[1] 郑天恩[1] 

机构地区：[1]铁道部劳动卫生研究所

出　　处：《铁道劳动安全卫生与环保》1998年第4期263-267,共5页Railway Occupational Safety Health & Environmental Protection

摘　　要：对３种提速列车进行了车厢内噪声、振动测试，噪声测试结果符合车速每提高１０ｋｍ／ｈ，声级相应增加１～２ｄＢ（Ａ）的规律，噪声频谱峰值主要集中在低频段３１．５Ｈｚ及６３Ｈｚ倍频程中心频率，振动测试Ｚ向振级明显大于Ｙ向，Ｙ向大于Ｘ向，部分车厢座椅无减振作用。Measured noise and vibration for three different types increase speed passenger train,the results showed the rule that the sound level increases 1～2 dB(A),when the speed increased 10 km/h.The main peak of noise frenquency spectrum was in the low octave central frenquency (31.5 Hz and 63 Hz).The vibrations observed during the test were the acceleration lever for Z larger than Y,Y than X ,the partical seats in vehicles can't dampen vibration.

关 键 词：噪声 振动 提速列车 车厢 火车 

分 类 号：U270.16[机械工程—车辆工程]