高速列车车下区域噪声特性及控制措施研究  

Research on Noise Characteristics and Control Measures of High Speed Train Underfloor Area

作　　者：汤晏宁 滕万秀 王奇[2] 汪宏楠 董效辰 TANG Yanning;TENG Wanxiu;WANG Qi;WANG Hongnan;DONG Xiaochen(Laboratory for Rail Transit Vehicle System Integration,CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun Jilin 130062,China;State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu Sichuan 610031,China)

机构地区：[1]中车长春轨道客车股份有限公司轨道交通车辆系统集成实验室,吉林长春130062 [2]西南交通大学轨道交通运载系统全国重点实验室,四川成都610031

出　　处：《中国铁路》2024年第11期8-13,共6页China Railway

基　　金：国家重点研发计划项目(2021YEB3801803);中国国家铁路集团有限公司科技研究开发计划项目(P2022Z003);中国中车股份有限公司科技研究开发计划项目(2023CYA269)

摘　　要：高速列车车下区域是影响动车组车内外噪声的关键位置之一,是动车组主要噪声源的分布区域。针对高速列车车下区域轮轨噪声、气动噪声的特性进行分析,提出相应的降噪措施,并开展数值分析与试验验证。研究结果表明,当列车以350 km/h速度运行时,车体下部区域对车外噪声的贡献量最大,其中转向架区域对车外噪声的贡献量最大,特别是头车1位转向架。通过优化设计转向架舱、排障器等结构,可降低高速气流引起的湍流脉动压力,同时转向架区域使用吸隔声材料包可有效控制车内噪声水平,为后续高速列车降噪方案的研制提供技术支撑。As one of the key factors to EMU noise-both inside and outside the train,the underfloor area is where most of the noise sources locate.Built on the analysis of the wheel-rail noise and aerodynamic noise in the underfloor area,the paper proposes the corresponding noise reduction measures,and conducts numerical analysis and experimental verification accordingly.The results indicate that when the train runs at 350 km/h,the underfloor area-the bogie area,or the bogie at No.1 position of the head car in particular-contributes the most to the exterior noise.The design optimization of bogie compartment,cowcatcher and other structure helps cut the turbulent fluctuation pressure caused by high speed airflow.At the same time,the use of sound absorption and insulation material in the bogie area can effectively control the noise level inside the train,supporting future efforts to develop noise reduction schemes for high speed trains.

关 键 词：高速列车 轮轨噪声 气动噪声 噪声特性 降噪措施 转向架 

分 类 号：U211[交通运输工程—道路与铁道工程]