Study on Weight Reduction of Urban Transit Carbody Based on Material Changes and Structural Optimization

被引：4

作者：

Cho, Jeong Gil ^{[1
]}

Koo, Jeong Seo ^{[1
]}

Jung, Hyun Seung ^{[2
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Rolling Stock Syst, Seoul, South Korea

[2] Korea Railroad Res Inst, New Transportat Syst Res Ctr, Seoul, South Korea

来源：

TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A | 2013年 / 37卷 / 09期

关键词：

Weight Reduction; Urban Transit Carbody; Size Optimization; Frame type; Composite Materials;

D O I：

10.3795/KSME-A.2013.37.9.1099

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study proposes a weight reduction design for urban transit, specifically, a Korean EMU carbody made of aluminum extrusion profiles, according to size optimization and useful material changes. First, the thickness of the under-frame, side-panels, and end-panels were optimized by the size optimization process, and then, the weight of the Korean EMU carbody could be reduced to approximately 14.8%. Second, the under-frame of the optimized carbody was substituted with a frame-type structure made of SMA 570, and then, the weight of the hybrid-type carbody was 3.8% lighter than that of the initial K-EMU. Finally, the under-frame and the roof-panel were substituted with a composite material sandwich to obtain an ultralight hybrid-type carbody. The weight of the ultralight hybrid-type carbody was 30% lighter than that of the initial K-EMU. All the resulting carbody models satisfied the design regulations of the domestic Performance Test Standard for Electrical Multiple Unit.

引用

页码：1099 / 1107

页数：9

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