地震引起的货物列车脱轨全过程计算

发布时间：2018-04-22 01:11

本文选题：铁道工程 + 地震　；参考：《东南大学学报(自然科学版)》2016年03期

【摘要】：为确保地震作用下货物列车在脱轨瞬间及时停车,建立地震作用下列车-轨道系统空间振动计算模型,并提出地震作用下列车脱轨全过程计算方法;以9~10级地震烈度下的强震为研究对象,分别计算货物列车以不同车速在直线和曲线线路上的脱轨全过程,分析轮轨几何接触状态及其相对位置.结果表明:地震烈度及车速对转向架与钢轨横向相对位移影响明显,而对转向架摇头角影响较小;曲线轨道对转向架与钢轨横向相对位移、转向架摇头角影响均较大;转向架与钢轨横向相对位移及转向架摇头角最大值分别为155 mm和4.6°.这些数据可为列车脱轨检测装置的研发提供参考.
[Abstract]:In order to ensure that the freight train stops in time at the moment of derailment under seismic action, the spatial vibration calculation model of train-track system under seismic action is established, and the calculation method of the whole process of train derailment under earthquake action is put forward. Taking the strong earthquake with magnitude 9 ~ (10) as the research object, the whole course of derailment of freight train at different speeds on straight and curve lines is calculated, and the geometric contact state of wheel and rail and its relative position are analyzed. The results show that seismic intensity and speed have obvious influence on the lateral relative displacement of bogie and rail, but have little effect on the angle of shaking of bogie, and curve track has great influence on the relative displacement of bogie and rail and the angle of shaking of bogie. The maximum values of lateral relative displacement of bogie and rail and the angle of shaking of bogie are 155 mm and 4.6 掳respectively. These data can provide a reference for the development of train derailment detection device.
【作者单位】：中南大学土木工程学院;华东交通大学土木建筑学院;
【基金】：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) 江西省青年科学基金资助项目(20142BAB216003) 西南交通大学牵引动力国家重点实验室开放课题资助项目(TPL0901;TPL1214)
【分类号】：U298.1

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