2층 고속열차 알루미늄 압출재 차체 구조물의 구조안전성 평가

초록

The purpose of this paper is to evaluate structural integrity of aluminum extrusion carbody for double deck high-speed train. The initial shape of aluminum extrusion profile for carbody was determined by the results of structural analysis according to the selected design variables. In order to find optimum mesh size for structural analysis of aluminum extrusion carbody, the convergence analysis was conducted and finite element model was made considering result of convergence analysis. The structural integrity was for carbody evaluated by commercial finite element analysis program and Korean Railway safety law. The basic concept of the aluminum extrusion carbody for double deck high-speed trains that satisfies the Korean Railway Safety law was presented through results of analysis.