일반철도 전두부의 충돌안전도 평가

초록

In order to protect passenger and craws from the train crash accident crashworthiness design should be applied to the primary structure of the train. In the case of the high speed crash accident because most of the kinetic energy is absorbed into the cab, crashworthiness design for the cab to absorb high level energy is very important. In this paper, a crash test was carried out to study crash behaviors of the conventional train cab, to which crashworthiness design is applied and confirm the energy absorbing mechanism with data measured from load cells, accelerometers and high speed camera. The results of the test show that the primary energy absorbers such as mechanical fuse and main energy absorbers successfully worked according to the prescribed manner. Reaction force measured from load cells indicate that the force at stage of 1th main energy absorbers was higher than the design force.