[1]龚凯,向俊,余翠英,等.曲线上货物列车超速引起的脱轨过程分析[J].东南大学学报(自然科学版),2015,45(1):172-177.[doi:10.3969/j.issn.1001-0505.2015.01.030]
　Gong Kai,Xiang Jun,Yu Cuiying,et al.Analysis on freight train derailment course induced by overspeed in curve[J].Journal of Southeast University (Natural Science Edition),2015,45(1):172-177.[doi:10.3969/j.issn.1001-0505.2015.01.030]
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曲线上货物列车超速引起的脱轨过程分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第1期
页码:
172-177
栏目:
交通运输工程
出版日期:
2015-01-20

文章信息/Info

Title:
Analysis on freight train derailment course induced by overspeed in curve
作者:
龚凯1; 向俊1; 余翠英1; 毛建红1; 2
1中南大学土木工程学院, 长沙 410075; 2华东交通大学土木建筑学院, 南昌 330013
Author(s):
Gong Kai1;  Xiang Jun1;  Yu Cuiying1;  Mao Jianhong1; 2
1School of Civil Engineering, Central South University, Changsha 410075, China
2School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
关键词:
铁路轨道;  列车超速;  脱轨力学机理;  能量随机分析理论
Keywords:
railway track;  train overspeed;  mechanical mechanism of derailment;  random energy analysis theory
分类号:
U213.2
DOI:
10.3969/j.issn.1001-0505.2015.01.030
摘要:
针对货物列车在曲线上因超速引起的脱轨问题,根据列车-轨道系统空间振动计算模型及列车脱轨能量随机分析理论,采用轮轨位移衔接条件并考虑轮轨“游间”的影响,提出了货物列车超速条件下的脱轨过程计算方法.根据该方法,对不同曲线轨道形位等工况下的货物列车脱轨过程进行了计算,分析了列车脱轨过程中的轮轨接触状态、轮轨相对位置及几何尺寸.研究结果表明,随着曲线半径的增大,在列车脱轨瞬间,转向架摇头角及转向架与钢轨横向相对位移逐渐减小,最大值分别为5.82°和78.1 mm.该结果可为研发机械式的列车脱轨检测装置提供理论依据和基础数据,进而确保该检测装置能在列车脱轨掉道的第一时间检测到位,及时停车.
Abstract:
For the freight train derailment problem in curve induced by overspeed, using the wheel-rail conjunction condition and considering the influence of clearance between wheel flange and gage line, the freight train derailment course calculation method is presented based on the spatial vibration calculation model of the train-track system and the energy random analysis theory of train derailment. According to this method, freight train derailment course is calculated under different curve track geometry conditions. Meanwhile, the contact status, the relative position and the geometric size of wheel-rail in the derailment course are also analyzed. Study results show that, at the moment when the train derailed, the bogie yaw angle and the lateral relative displacement between bogie and rail decreases with the increase of curve radius, the maximum values being 5.82° and 78.1 mm respectively. The results can provide theoretical basis and data for the development of mechanical train derailment detection device, and make it possible to detect the risk before derailment and stop the train timely.

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备注/Memo

备注/Memo:
收稿日期: 2014-07-10.
作者简介: 龚凯(1986—), 男,博士生; 向俊(联系人), 男, 博士, 教授,博士生导师,jxiang@mail.csu.edu.cn.
基金项目: 国家自然科学基金委员会与神华集团有限公司联合资助项目(U1261113)、高等学校博士学科点专项科研基金资助项目(20100162110022)、牵引动力国家重点实验室开放课题资助项目(TPL0901,TPL1214).
引用本文: 龚凯,向俊,余翠英,等.曲线上货物列车超速引起的脱轨过程分析[J].东南大学学报:自然科学版,2015,45(1):172-177. [doi:10.3969/j.issn.1001-0505.2015.01.030]
更新日期/Last Update: 2015-01-20