탈선계수와 윤중감소율에 의한 곡선부 주행안전성 비교ㆍ분석

초록

As the tilting train generally runs at the curves at the speed of approximately 30% higher than the non-tilting train the degree of force for the rail to bear increases as highly as the speed increases. Especially the centrifugal force greatly increases, which is transferred to the wheel and rail and the lateral force is increased on the exterior side part at the curves resulting in the derailment coefficient's increasing and the wheel off-loading's increasing. In case of the actual derailed examples the cases with a higher vertical force decrease are more than the ones with a higher lateral force. Accordingly in this study the wheel off-loading leading to the cause of the actually derailed examples was intensively analyzed by each speed range in order to evaluate the running safety followed by the tilting train's increased speed at the curves.