Numerical Investigation of the U-Steel Guard Rail Used in Train-to-Train Collision Tests

To reduce the occurrence of accidents during train-to-train collision test, it is necessary to carry out research on derailment protection. According characteristics a method using U-steel as guard rail proposed. The protection range obtained through geometric relationship. ability and damage risks in different impact conditions, velocities, installation positions are studied. Additionally, section shape optimized for multiple objectives. results show that can effectively lateral displacement rotation angle bogie within protective protect vehicle, but some risk itself greater. maximum stress structure reduced by 28.19%, which reduces damage, still has good ability.