유연 복합소재 프레임을 장착한 전동차용 대차의 주행성능평가 연구

초록

In this study, running performance of an urban subway train bogie with a flexible composite bogie frame was evaluated. In order to achieve the goal, we carried out the multi-body dynamic analysis with the flexible bogie frame. Critical speed under empty and fully loaded conditions was 115.88kph, and 153.77kph, respectively. And ride comfort, derailment index, and wheel unloading rate met the design standards.