地铁车辆噪声现状及分析

Current state and analysis of metro vehicle noise

随着城市轨道交通车辆的快速发展,乘客对地铁车辆的舒适性提出了更高的要求,地铁车辆运营阶段的噪声问题成为目前广泛关注的热点问题,也是亟待解决的问题。文章从地铁车辆的噪声现状入手,分析轮轨相互作用引起的轮轨噪声问题,车体和薄弱环节的隔声与密封问题,以及隧道运行环境会产生混响声场环境差异问题等,为车辆噪声控制提供依据并指明方向。

With the rapid development of urban rail transit vehicles,passengers have put forward higher requirements for the comfort of metro vehicles.The noise problem during the operation of metro vehicles has become an important issue,which is currently widely concerned.And it is also an urgent problem needed to be solved.In this paper,based on the current state of metro vehicle noise,the problems of wheel/rail noise from wheel/rail interaction,the sound insulation and sealing of the car body and the weak parts,and the problem of environmental differences in the reverberant sound field caused by the running condition in tunnel are analyzed.The basis and direction of noise control is provided.