重载列车纵向冲动动力学研究  

Longitudinal Impulse Dynamics of Heavy Haul Train

作　　者：孙树磊[1,2] 李芾[2] 

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900 [2]西南交通大学机械工程学院,四川成都610031

出　　处：《中国铁道科学》2015年第4期136-138,共3页China Railway Science

基　　金：国家自然科学基金资助项目(51305359);中央高校基本科研业务经费资助项目(SWJTU09ZT07)

摘　　要：提高轴重和增加编组数量已成为我国重载铁路提高运能和效率的重要手段，国内外重载列车的运营、试验及研究结果均表明，货车轴重的提高和编组数量的增加会导致列车中的纵向冲动显著增大，从而带来车辆脱轨、结构破坏等安全隐患。因此，本文以国内重载列车为研究对象，研究在调车及制动等工况下重载列车纵向冲动动力学所涉及的关键技术问题。主要研究内容和结论如下。Increasing axle load and train formation number has been an important way to improve the trans- port capacity and efficiency for heavy haul railway in China. However, it is indicated from the opera- tion, test and research results of heavy haul train home and abroad that, the increase in the axle load of freight car and train formation number will cause the longitudinal impulse of train increase sig- nificantly and result in the hidden danger for such problems as train derailment, structure damage and so on. Therefore, the key technical problems related to the longitudinal impulse dynamics under the conditions of shunting and braking have been studied with the heavy haul train in China as the research object. The main contents and conclusions are as follows.

关 键 词：重载列车 纵向冲动 缓冲器动力学 调车冲击 空气制动 列车动力学 

分 类 号：U270.1[机械工程—车辆工程] U272[交通运输工程—载运工具运用工程]