铁路常见固定性声源声功率级的测定  

Survey and Determination of Acoustic Power Level of Railway Regular Sound Source

作　　者：魏保祥[1] 顾社潮[1] 刘宝芳[1] 苑美华[1] 耿小娟[1] 

机构地区：[1]北京铁路局中心卫生防疫站

出　　处：《铁道劳动安全卫生与环保》1995年第3期198-202,共5页Railway Occupational Safety Health & Environmental Protection

摘　　要：对铁路系统常见的１１类４３种型号计１８７台固定性声源进行了测定，噪声级为８３．０～１３１．１ｄＢ（Ａ），线性声功率级为８９．４～１３８．６ｄＢ。大多数固定性声源呈中高频特性。The Author surveied and determined 187 regular sound sources─classified 11kinds(43 types)─which were regular in railway system. Sound level was 83.0～ 131.1 dB(A).Liner Acoustic power level was 89.4～138.6 dB,Most regular noises assumed specific property of middle or high frequency.

关 键 词：声功率级 固定性声源 测定 铁路 

分 类 号：U270.16[机械工程—车辆工程] TB533.2[交通运输工程—载运工具运用工程]