ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
Journal Information
View Full Text
 
 
 
 
Abstract

Composites Research. 2019 32(1): 29-36
ⓒ The Journal of the Korean Society for Composite Materials
    
 
A Study on Lightweight Design of Double Deck High-Speed Train Hybrid Carbody Using Material Substitution and Size Optimization Method
Jae-Moon Im, Min-Ho Jung, Jong-Yeon Kim, Kwang-Bok Shin
Rolling Stock R&D Center, Dawonsys Co., Ltd., Department of Mechanical Engineering, Hanbat National University
 
 
소재대체법과 치수최적화 기법을 이용한 2층 고속열차 하이브리드 차체 구조물의 경량 설계 연구
임재문, 정민호, 김종연, 신광복
Rolling Stock R&D Center, Dawonsys Co., Ltd., Department of Mechanical Engineering, Hanbat National University
 

The purpose of this paper is to suggest a lightweight design for the aluminum extrusion carbody structure of a double deck high-speed train using material substitution and size optimization method. In order to conduct material substitution, the topology optimization was used to determine the application parts of sandwich composites at the carbody structures. The results of analysis showed that sandwich composites could be applied at roof and 2nd underframe. The size optimization was used to determine thickness of the aluminum extruded and carbon/epoxy composite. The design variable, state constraint and objective function were formulated to solve the size optimization, and then, the feasible design was presented by these conditions. The results of the lightweight design showed that the weight of double deck high-speed train hybrid carbody could be reduced by 2.18(17.70%) tons.
 
Key words : Lightweight design, Size optimization, Material substitution, Topology optimization, Sandwich composites
중심단어 : 경량 설계, 치수최적화, 소재대체법, 위상최 적화, 샌드위치 복합재
 
 
  
 
 
 

The Korean Society for Composite Materials / 137-070) 1337, Seocho 2-dong, Seocho-gu, Seoul, Korea
Tel: +82-2-598-1550 / Fax: +82-2-598-1557 / Email: composites@kscm.re.kr Copyright 2008 by the Korean Society for Composite Materials