Dynamic Simulation of Urban Rail Transit Train Based on Single-Particle Model

The construction and development of urban rail transit projects need to calculate the operation effects of a train and evaluate them under different conditions instantaneously,accurately and quickly,therefore a real-time simulation of the operation process of the urban rail vehicle is urgent so that traction calculation can be done.According to the requirements of real-time simulation of a running urban rail train,the features of single particle models are examined for improvement,and the improved single-particle model of train dynamics is built.The improved single-particle model amends the algorithms for ramp simplification,train model and auto-selection of working conditions,etc.includes the inherent train parameters and the line parameters and constructs a simulation computing platform.Through analyzing the simulation results and time complexity,the improved single-particle model is proved to have reached a high level in computing efficiency and accuracy.