Dynamic Responses of 87-Type Railway Steel Beam for Rush-repair under Heavy Load Trains

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Ma, Yao Yao^1 ; Zhang, Shu Hao^1 ; Zhao, Cun Bao^1

Traffic Research Institute of National Defense, Shijiazhuang Tiedao University, Shijiazhuang, Hebei

050043, China^1

关键词: Combined simulation;    Derailment coefficient;    Finite element analysis software;    Lateral amplitudes;    Lateral force;    Rate of wheel load reduction;    Vertical deflections;    Vibration systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/2/022041/pdf
DOI  :  10.1088/1757-899X/392/2/022041

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

87-type railway steel beam for rush-repair were established by the finite element analysis software ANSYS and five different spans of beams were taken into consideration in the research of dynamic responses. DF4 locomotive hauling C70 freight heavy load marshalling trains model was established by dynamics software UM, in which specific wheel and rail relationship was used to found a combined simulation vibration system. After modeling, process of train running through the bridge was simulated to study several indexes including mid-span vertical deflection, mid-span lateral amplitude, derailment coefficient, rate of wheel load reduction and lateral force of wheel. These indexes made it possible to find out the changing pattern and the conclusion of maximum recommended speed.