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반응표면모델에 의한 분산형 고속 전철의 승차감 향상을 위한 현가장치 최적화
장정웅(Jung Woong Jang),백승국(Seung-Guk Baek),이상원(Sang Won Lee),최연선(Yeon-Sun Choi),구자춘(Ja Choon Koo) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The high speed electrical multiple trains under development have a distributed electrical motor system and a non-articulated bogie. Also, the high speed train has maximum speed at 430㎞/h and operation speed at 370㎞/h. These characteristics of high speed train could cause serious vibration and decrease ride comfort. Therefore, ride comfort of high speed train must be considered in suspension design. In this study, the suspension system has been optimized to improve ride comfort of high speed train. First, an objective function is define as UIC 513R ride comfort index. The stiffness coefficient and damping coefficient are selected as design parameter for optimization. And then, sensitivity analysis was conducted to obtain effective design parameter using Plackett-Burman Design. Finally, the response surface model is used to obtain the optimal design value of suspension system. The results of optimization were verified by ADAMS/Rail simulation.