A study of the crashworthiness simulation for a new tramcar
To verify the crashworthiness of a new type of tram,this paper defines two collision scenarios for this train model,namely frontal collision and oblique collision,in line with EN15227:2020"Crashworthiness Require-ments for Railway Vehicles".Hypermesh and LS-DYNA software are used to establish a finite element model of train collision,and collision simulating calculations are carried out.The crashworthiness of the train is evaluated from the perspective of energy absorption,living space and structural integrity,acceleration and anti-rail-climb-ing.The calculation results show that the anti-collision energy absorbing structure of the tram can withstand a head-on collision with the same train at a speed of 25 km/h and an oblique collision with a 3-ton rigid obstacle at a speed of 25 km/h,without endangering the vehicle structure and passenger safety.This method is of a guiding sig-nificance for the definition of operating conditions,collision simulation,crashworthiness evaluation,and design of energy absorbing structures for the end of the new tram.
万方数据
维普
