인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In urban railways where the distance between stations is short and the interval of train dispatch is short, rail surface defects occur more frequently in the station area than in the train travel area. In this study, the finite element analysis simulating the frictional heat generated by the braking force of the train was performed and the rolling contact fatigue damage rate was analyzed by deriving the stress in the rail according to the braking force of the train. The maximum stress at 6.8mm from the rail surface and the increase of the braking force to 100, 200 and 300% compared to when the train traveled at 100km/h resulted in the rolling contact fatigue damage on the rail surface Increased about 6~28%, and increased about 3~12% at the depth of about 6.8mm from the rail surface. Therefore, the rail grinding operation to control the degradation of the rail surface caused by the contact between the wheel and the rail is proposed to distinguish between the train travel zone and the braking zone.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2017-525-002244952