Design and Mechanical Properties Analysis of Variable Buffer-Force Planing Energy-Absorbing Device for Rail Vehicles

Collisions between rail transit vehicles are unavoidable. In order to alleviate the disaster caused by collision, energy-absorbing and shock-absorbing materials generally installed at front end of vehicle. this paper, a variable buffer-force planing device for was prepared. The buffer force changed length (Dx), angle (A) thickness (W). First, we manufactured one type material, data were obtained through experimentation. Second, used Ls-DYNA simulate determined accuracy simulation test. Third, various parameters material simulated Ls-DYNA. results show that changing Dx greatly affects performance W has no obvious effect on performance, A is important properties. Based finite element simulation, functional model relationship average deduced. This lays groundwork application energy absorbing device.