中南大学学报（自然科学版）Issue(10)：3954-3960,7.DOI:10.11817/j.issn.1672-7207.2015.10.052
洪涝灾害引起的货物列车脱轨全过程分析
Analysis of derailment course of freight train in floods
摘要
Abstract
Considering the influence of floods, train-track system spatial vibration model based on the train-track system spatial vibration analysis theory was established, and the system spatial vibration matrix equation was proposed according to the principle of total potential energy with stationary value in elastic system dynamics and the “set-in-right-position” rule for formulating system matrixes. Adopting the theory of energy random analysis for train derailment, calculation method for the whole train derailment course in floods was proposed to calculate and analyze the whole train derailment course inand curverespectively. The results show that when the freight train derailed by floods in straight line and curve, the bogie yaw angle is 0.20° and 0.27°, and the lateral corresponding displacement between the bogie and track is 52.8 mm and 48.1 mm,respectively.Meanwhile, it is more likely to derail in curve than in straight line. The results provide a theory basis and technical parameters for the invention of mechanical train derailment alarm, which ensure that the train is stopped timely when it derails.关键词
铁道工程/脱轨全过程/洪涝灾害/货物列车/脱轨能量随机分析理论Key words
railway engineering/derailment course/floods/freight train/derailment energy random analysis theory分类
交通工程引用本文复制引用
龚凯,向俊,毛建红,余翠英..洪涝灾害引起的货物列车脱轨全过程分析[J].中南大学学报（自然科学版）,2015,(10):3954-3960,7.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(TPL0901， TPL1214)；江西省青年科学基金资助项目(20142BAB216003)(Project (U1261113) supported by the National Natural Science Foundation Committed of China and Shenhua Group Corporation Limited （U1261113）
Project (20100162110022) supported by Special Fund for Doctor Programs in Institutions of Higher Learning of China （20100162110022）
Projects (TPL0901, TPL1214) supported by the Open Program of the Traction Power State Key Laboratory （TPL0901, TPL1214）
Project (20142BAB216003) supported by Jiangxi Province Science Foundation for Youths) （20142BAB216003）
