Research and Application of Urban Rail Tran-sit Train Collision Performance
[Objective]In order to effectively reduce the hazards from the collision of urban rail transit trains and there-by improve the safety of train operation,it is necessary to con-duct research on the collision performance of urban rail transit trains during the operation process.[Method]Based on urban rail transit train collision scenarios and standards,a train colli-sion energy management scheme is proposed.The finite ele-ment software is utilized to conduct simulation calculation of train collision scenarios,the speed,vehicle interface force,coupler force,vehicle deformation amount,stress and strain in trains collision are analyzed.[Result & Conclusion]During the collision with the train speed of 25 km/h,the maximum deformation in the passenger area of the vehicle would occur in Car 6.This elastic deformation could reach 12.2 mm,far less than that specified in EN 15227:2008+Al:2010 Railway ap-plications-Crashworthiness requirements for urban rail transit vehicle bodies.The maximum plastic strain of the vehicle oc-curring at the ends of Car 6 is 4.7％,less than 10％as speci-fied in EN 15227:2008+A1:2010.Therefore,the vehicle meets the requirements for the survival space specified in EN 15227:2008+A1:2010 during the collision.The maximum lifting height of the wheelset at the rear bogie of Car 5 reaches 10.5 mm,not exceeding 75％of the flange height,thereby without the risk of vehicle climbing.The proposed collision en-ergy management scheme satisfies the requirements for vehicle crashworthiness in EN 15227:2008+A1:2010.
万方数据
维普
