축소 여객 차량의 강성비와 질량비 변화에 관한 상하 진동 실험

초록

The purpose of this study is to analyze the effects of the parameters of the suspension system in railway rolling-stock for KT-23 type passenger vehicle. According to the results of simulation and the small scale vehicle test, optimal condition was obtained for the stiffness ratio of the primary spring and secondary spring of the suspension system and the mass ratio of the car body and bogie frame. When the stiffness ratio was increased, the vertical vibration was increased on the car body. Also, when the mass ratio was decreased, the vertical vibration on the car body was decreased and the vertical vibration on the bogie frame was increased. The results of this study are stable to use of the optimum parameter of the ride quality of KT-23 type passenger vehicle. The result show to propose for the optimum design when the stiffness ratio was decreased less thanrm k=0.147. Also, it is useful to development of full scale vehicle dynamomter.