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원공배열 결정에 최적기준법에 의한 전동차 크로스 빔의 위상최적화에 관한 연구
전형용(Jeon Hyung-Yong),천홍정(Chun Hong-Jeong),송시엽(Song See-Yeob),최중호(Choi Joong-Ho) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
Electric vehicle body has to be subjected to uniform load and requires auxiliary equipment such as air pipe and electric wire pipe. Especially, the cross beam supports the weight of passenger and electrical equipments. a lightweight vehicle body is salutary to save operating costs and fuel consumption. Therefore this study is to perform the size and the shape optimization of cross beam for electric vehicle using the method of topology optimization to introduce the concept of homogenization based on optimality criteria method which is efficient for the problem having the number of design variables and a few boundary condition. this provides the method to determine the optimum position and shape of circular hole in the cross beam and then can achieve the optimal design to reduce weight.
UIC code에 따른 대차 프레임 구조해석 및 시험에 관한 연구
최중호(Choi Joong-Ho),송시엽(Song See-Yeob),천홍정(Chun Hong-Yong),전형용(Jeon Hyung-Yong),박형순(Park Hyung-Soon) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
This report is the result performed the structural analysis and the static and fatigue load test of bogie frame for the purpose of designing and verifying the bogie frame which satisfy the load condition required in the UIC code. This investigation is proposed the efficient draft of the design to satisfy the load condition required in the UIC code. And It is performed the structural analysis to evaluate the static strength and the fatigue life of the patient material and the welded part. Also, This is proposed the efficient draft of the test to satisfy the method of the static and fatigue test required in the UIC code. And it is carried out the sta-ic and the fatigue load test to verify it. We can designed the bogie frame in compliance with UIC 515-4 and 615-4 code.