Introduction of new tilting technology with CPTC(Cylindrical Pipe Type Carbody) and its technical investigation to improve passenger safety

초록

Due to the high demand to reduce travel time from rural area residents of south Korea, train operating department, KNR(Korea National Railway) face to make decision for building a high speed railway transport system. Tilting train is considered one of the advanced railway technologies and very effective way to improve train speed by railway operator. So KNR has to develop tilting technology to use existing railway lines. KRRI(Korea Railroad Research Institute) started to investigate tilting train technology as well as condition of existing railway infrastructures based on request of Korean government. In this paper, one of the tilting train technology invented by KRRI and its design modification to have a low center of gravity are introduced as follows. Cylindrical pipe type car-body is disclosed, in which a body of a trail is configured to be rotated itself without providing a tilting apparatus of a body, a transversal acceleration of the body can be reduced at the curved section of a rail, and a relatively high comfort to passengers can be gained with lower manufacturing and maintenance cost. A tilting body of a high-speed train comprises an interior body formed with cylindrical type, having seats inside the body, and plural windows and entrances provided on each longitudinal side of the body