Dynamic simulation and safety evaluation of high-speed trains meeting in open air

作     者：Songyan Li Zhijun Zheng Jilin Yu Chunqiang Qian 

作者机构：CAS Key Laboratory of Mechanical Behavior and Design of MaterialsUniversity of Science and Technology of China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2016年第32卷第2期

页      面：206-214页

核心收录：

学科分类：082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程] 

基　　金：the National Basic Research Program of China (973 program,Grant 2011CB711100) the National Natural Science Foundation of China (Project No.11372307) the Chinese Academy of Sciences (Grant KJCX2-EW-L03) 

主　　题：High speed train Pressure pulse Derailment Dynamics simulation Safety standard 

摘      要：Dynamic responses of a carriage under excitation with the German high-speed low-interference track spectrum together with the air pressure pulse generated as high-speed trains passing each other are investigated with a multi-body dynamics *** variations of degrees of freedom（DOFs：horizontal movement,roll angle,and yaw angle）,the lateral wheel-rail force,the derailment coefficient and the rate of wheel load reduction with time when two carriages meet in open air are obtained and compared with the results of a single train travelling at specifie *** show that the rate of wheel load reduction increases with the increase of train speed and meets some safety standard at a certain speed,but exceeding the value of the rate of wheel load reduction does not necessarily mean *** evaluation standard of the rate of wheel load reduction is somewhat conservative and may be *** pressure pulse has significan effects on the train DOFs,and the evaluations of these safety indexes are strongly suggested in *** pressure pulse has a limited effect on the derailment coefficien and the lateral wheel-rail force,and,thus,their further evaluations may be not necessary.