弹性轨枕轨道振动特性研究  

Study on Vibration Characteristics of Elastic Sleeper Tracks

作　　者：徐涆文 韩健[2] 刘晓龙[2] 陈秉智[1] 肖新标[2] XU Hanwen;HAN Jian;LIU Xiaolong;CHEN Bingzhi;XIAO Xinbiao(School of Traffic and Transportation Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning China;State key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China)

机构地区：[1]大连交通大学交通运输工程学院,大连116028 [2]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《噪声与振动控制》2019年第2期156-161,共6页Noise and Vibration Control

基　　金：国家重点研发计划资助项目(2016YFB1200504);国家重点研发计划资助项目(2017YFB1201103-08)

摘　　要：弹性轨枕轨道是目前城市轨道交通中运用较为广泛的轨道类型,钢轨是弹性轨枕轨道主要的振动和声辐射结构,通过研究钢轨的振动特性能够为控制振动和辐射噪声提供相关参考数据。在频域角度研究弹性长轨枕和弹性短轨枕轨道钢轨的垂向振动特性,分析不同轨枕结构及结构参数对钢轨垂向振动的影响,包括轨枕支撑刚度、轨枕质量以及轨枕尺寸对钢轨垂向振动的影响。结果表明:弹性轨枕轨道轨枕结构及结构参数的改变只会影响钢轨在0～400 Hz范围内的垂向振动特性。The elastic sleeper track is now widely used in urban rail transit. The rail is the main vibration and acoustic radiation source. Analyzing the dynamic characteristics and noise radiation of the track can provide useful numerical results for controlling and reducing the vibration and noise of the track. In this paper, the vertical vibration characteristics of flexible long sleeper and elastic short sleeper rails are studied in the frequency domain. The influences of different sleeper structures and structural parameters on rail vertical vibration are analyzed. These structural parameters include the stiffness, mass and geometrical parameters of the sleepers. The results show that the difference of the sleeper structures and structural parameters only influence the vertical vibration of the elastic sleeper track rail in the frequency range of 0-400 Hz.

关 键 词：振动与波 弹性轨枕轨道 谐响应分析 有限元法 加速度导纳 

分 类 号：U270.16[机械工程—车辆工程]