전차선 단면형상 및 재질 변화에 따른 피로수명평가

Contact wire is exposed to continuous tension by weight and bending fatigue condition by the contact of pantograph. After the fatigue failure of contact wire in Shinkansen, fatigue evaluation of contact wire has become an important issue. Thus, in this paper, fatigue failure evaluation on the contact wires which is used or considered to be applied in Korea. The shape of cross section of contact wire influence the maximum stress when bending deformation occurs by the contact with pantograph. Therefore, fatigue evaluation was performed, considering the shape of cross section.