| 北京地铁钢轨波磨测试分析 |
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| 引用本文： | 刘维宁,任静,刘卫丰,王文斌,张厚贵.北京地铁钢轨波磨测试分析[J].都市快轨交通,2011,24(3):6--9. |
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| 作者姓名： | 刘维宁 任静 刘卫丰 王文斌 张厚贵 |
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| 作者单位： | 北京交通大学土木建筑工程学院;北京城建设计研究总院有限责任公司; |
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| 基金项目： | 北京市科委课题(Z101106000410004) |
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| 摘 要： | 针对北京地铁钢轨异常波磨问题,对地铁5号线各种轨道结构形式进行钢轨振动加速度测试,对地铁4、5号线全线进行车厢内噪声测试,在地铁5号线选择4种扣件形式进行钢轨模态测试.结果表明:对于剪切型减振器扣件,在300Hz左右轮轨的共振效应,是该扣件区段产生钢轨波磨的主要原因;钢轨波磨引起的轮轨接触面不平顺,是产生车内异常噪声的...
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| 关 键 词： | 北京地铁 钢轨渡磨 振动加速度测试 噪声测试 模态测试 |
| 修稿时间： | 2013/12/12 0:00:00 |
In-situ Tests and Analysis on Rail Corrugation of Beijing Metro |
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| Liu Weining,Ren Jing,Liu Weifeng,Wang Wenbin,Zhang Hougui.In-situ Tests and Analysis on Rail Corrugation of Beijing Metro[J].Urban Rapid Rail Transit,2011,24(3):6--9. |
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| Authors: | Liu Weining Ren Jing Liu Weifeng Wang Wenbin Zhang Hougui |
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| Institution: | Liu Weining1 Ren Jing2 Liu Weifeng1Wang Wenbin1 Zhang Hougui1(1.School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,2.Beijing Urban Engineering Design &Research Institute Co.,Ltd.,Beijing 100037) |
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| Abstract: | In order to study the rail corrugations on Beijing metro lines,authors carried out in-situ measurements of rail accelerations for all types of track on line 5,noises in trains on line 4 and line 5 and rail vibration modes for four types of fasteners on line 5.Results indicated that the resonance between rail and wheel at about 300Hz was the main reason for the rail corrugations which occurred on the section with shearing vibration-reduction fasteners;the wheel/rail contact surface unevenness induced by corrugation caused mainly the abnormal noises in the train;the low damping of the shearing vibration-reduction fasteners in the frequency range of 200～350Hz cannot restrain the vibration of rails,which may also induce rail corrugation. |
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| Keywords: | Beijing metro rail corrugation acceleration meas urement noise measurement vibration mode test |
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