[1]刘明.成灌铁路动车组车体异常晃动原因分析及治理[J].高速铁路技术,2023,14(06):72-77，83.[doi:10.12098/j.issn.1674-8247.2023.06.014]
　LIU Ming.Analysis and Treatment of Abnormal Wobbling of Car Body of EMU on Chengdu-Dujiangyan Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(06):72-77，83.[doi:10.12098/j.issn.1674-8247.2023.06.014]
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成灌铁路动车组车体异常晃动原因分析及治理()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
14卷
期数:
2023年06期
页码:
72-77，83
栏目:
勘察设计
出版日期:
2023-12-30

文章信息/Info

Title:
Analysis and Treatment of Abnormal Wobbling of Car Body of EMU on Chengdu-Dujiangyan Railway
文章编号:
1674-8247（2023）06-0072-06
作者:
刘明
中国铁路成都局集团有限公司，成都610000
Author(s):
LIU Ming
China Railway Chengdu Group Co. ，Ltd. ，Chengdu 610000 ，China
关键词:
成灌铁路; 车体晃动; 钢轨廓形; 等效锥度; 廓形打磨
Keywords:
Chengdu-Dujiangyan Railway; wobbling of car body; rail profile; equivalent taper; rail profile grinding
分类号:
U266
DOI:
10.12098/j.issn.1674-8247.2023.06.014
文献标志码:
A
摘要:
针对成灌铁路某型动车组服役过程中出现的车体晃动现象问题，对出现晃车区段的钢轨廓形、车轮踏面等进行了全方位的调查，选取固定车号进行了动态跟踪测试，对该型动车组晃车现象进行了全方位的现场试验。研究结果表明：（1）引起该型动车组车体异常晃动的主要原因为：晃车区段实测钢轨廓形作用边较低，与实测车轮踏面匹配时轮轨匹配等效锥度偏低，激发了车体的下心滚摆模态，导致动车组发生一次蛇形；（2）通过精细化地采集钢轨廓形、针对性地实施钢轨廓形打磨方案、对打磨区段进行全覆盖廓形跟踪验收、对打磨前后动车组进行多次动态添乘测试，消除了成灌铁路动车组车体晃动问题。研究成果对解决城际线路运营动车车体异常晃动问题具有较好的指导意义。
Abstract:
In response to the wobbling of car body experienced in a certain type of EMU during operation on Chengdu-Dujiangyan Railway，a comprehensive investigation was conducted on the rail profile and wheel tread of the wobbling sections. Dynamic tracking tests were carried out with a specific trainset，and a full range of field tests was conducted on the wobbling phenomenon of this type of multiple units. The study results show：（1）The main cause of abnormal wobbling of car body of this EMU model is the lower operating side of the surveyed rail profile in the wobbling sections. The low equivalent rail-wheel taper when matched with the surveyed wheel tread stimulates the body’s off-center roll mode，leading to snake-shape locomotion of the multiple units.（2）The wobbling in the car bodies of EMU on Chengdu-Dujiangyan Railway was eliminated through precise rail profile collection，implementation of targeted rail profile grinding scheme，full coverage profile tracking acceptance in the grinding sections，and dynamic riding tests of EMU before and after grinding at multiple frequencies. The study results have significant implications for resolving issues of abnormal wobbling of car body of EMU operating on intercity lines.

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备注/Memo

备注/Memo:
收稿日期：2022-11-11
作者简介：刘明（1980-），男，工程师。
更新日期/Last Update: 2023-12-30