轨道交通车辆车门空气声隔声试验声源位置布置探讨  

Discussion on Layout of Sound Source in Airborne Sound Insulation Test of Rail Transit Vehicle Door

作　　者：牛兴荣[1] 潘锋[1] 楚斌 庄立东 NIU Xingrong;PAN Feng;CHU Bin;ZHUANG Lidong

机构地区：[1]中国合格评定国家认可中心,北京100062 [2]南京康尼机电股份有限公司试验检测中心,江苏南京210046

出　　处：《铁道技术监督》2021年第9期22-26,共5页Railway Quality Control

基　　金：国家市场监督管理总局科技计划项目(2019MK140)。

摘　　要：空气声隔声性能是轨道车辆门系统主要指标之一。隔声试验中的声源布置对隔声量检测,尤其低频段的隔声量检测至关重要,声源位置布置不合理直接影响测试结果。目前声源技术要求和布置方法主要依据是GB/T 19889.3—2005《声学建筑和建筑构件隔声测量第3部分:建筑构件空气声隔声的实验室测量》和ISO 10140-5:2010《声学建筑部件隔音的实验室测量第5部分:测试设施的要求》。在ISO 10140-5:2010的基础上,细化声源位置选定过程,重点分析其中的注意要点,并以实际案例阐述如何准确、快速地选定最优声源方案。The airborne sound insulation performance is one of the main indexes of the door system of rail transit ve⁃hicles,the sound source layout is very important for measurement of sound insulation,especially in the low frequency band.Currently,the technical specifications and layout methods of sound sources are mainly based on GB/T 19889.3-2005 Acoustics-Measurement of sound insulation in buildings and building elements-Part 3:Laboratory measure⁃ments of airborne sound insulation of building elements and ISO 10140-5:2010 Acoustics-Laboratory measurement of sound insulation of building elements-Part 5:Requirements for test facilities and equipment.On the basis of 10140-5:2010,this paper refines the process of sound source selection,focuses on the analysis of key points,and explains how to accurately and quickly select the optimal sound source scheme with practical cases.

关 键 词：轨道交通车辆 车门 空气声 隔声试验 声源位置布置 

分 类 号：U270.386[机械工程—车辆工程]