기관차용 대용량 충돌에너지 흡수용 사이드버퍼 개발

Recently, the crashworthiness requirements and standards are variously released world widely and the passive crashwothiness design are requested. In this paper, the high capacity of crash energy absorbing element which is to be applied to the locomotives has been studied and developed. As the strength requirement for the proof load is severe for the locomotives, the side buffer type is needed to be attached on the car extreme end .This concept is to protect the carbody structure with buffer to absorb all the required energy. The absorbers are developed by real crash test and finally the crashworthiness analysis with full carbody structure has been analyzed according to EN15227 C-I standard.