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http://dx.doi.org/10.7735/ksmte.2015.24.2.177

Lightweight Design of Car Bodies for Double Deck High-Speed Trains  

Kang, SeungGu (Graduate School of Mechanical Engineering, Hanbat National Univ.)
Shin, KwangBok (Department of Mechanical Engineering, Hanbat National Univ.)
Ko, TaeHwan (Korea Railroad Research Institute)
You, WonHee (Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.24, no.2, 2015 , pp. 177-185 More about this Journal
Abstract
This paper describes a weight-reduction design method for the car bodies of a double deck high-speed train (service speed of 300 km/h). The method uses lightweight materials and a topology optimization technique. In this study, aluminum extrusions and sandwich composites were selected as the best materials to reduce the weight of the car body. The topology optimization technique was used to determine which car body parts could be made of the sandwich composites to achieve additional weight savings. The results of the topology optimization analysis showed that sandwich composites could be used for secondary car body members such as the roof and the second underframe. Also, it was found that a car body composed of aluminum extruded parts and sandwich composites could weigh up to 14% less than a car body made of only aluminum extrusions.
Keywords
Aluminium Extrusion; Double Deck High-Speed Train; Lightweight Design; Sandwich Composites;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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