城轨车辆铝合金车体结构隔声量分析  

Analysis on sound transmission loss about aluminum-alloy car body of the metro vehicles

作　　者：郭海洋[1] 杨国纪[1] 唐勇军[1] 

机构地区：[1]南车株洲电力机车有限公司技术中心,湖南株洲412001

出　　处：《电力机车与城轨车辆》2011年第6期29-31,共3页Electric Locomotives & Mass Transit Vehicles

摘　　要：文章以城轨车辆铝合金车体结构为研究对象,组合不同的常用材料进行隔声试验,通过对车体不同结构的试验所得数据及频谱图进行分析研究,找出车体结构中具有最优声学性能的组合,从而设计出最优结构的低噪声、高舒适性城轨车辆。The paper taking aluminum alloy metro vehicle body structure as the research object, the different metro commonly materials for insulation testing. The most optimization acoustic performance is identified through analyzing the different sound insulation dates and spectral, with which the low-noise combines structure and high comfortable metro vehicles will be designed.

关 键 词：城轨车辆 车体结构 噪声 隔声量 

分 类 号：U270.384[机械工程—车辆工程]