Browse > Article
http://dx.doi.org/10.3795/KSME-A.2011.35.2.213

Weight Reducing of Aluminum Extrusion Profiles of a Railway-Car Body Based on Topology and Size Optimization  

Han, Soon-Woo (Railway Structure Research Div., Korea Railroad Research Institute)
Jung, Hyun-Seung (Railway Structure Research Div., Korea Railroad Research Institute)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.2, 2011 , pp. 213-221 More about this Journal
Abstract
In this study, we discussed the weight reducing of a urban railway-car body, in particular, of the Korean EMU, by optimizing topology and size of aluminum extrusion profiles. The heaviest parts of aluminum railway-car bodies, i.e., the base plate of underframe and side panels of side frame composed of double skin structures are considered for optimization. Topology optimization process is applied to obtain get an optimized rib structure for the base plate. The thickness of ribs and plates of the topologically optimized base plate and the existing side panel are also optimized by employing the size optimization process. The results are verified by comparing the maximum von Mises stresses and maximum deformation in the case of the existing design with those in the case of the optimized design. It is shown that the weight of a base plate and side panel can be reduced by 12% and that the weight of the whole car body can be reduced by 8.5%.
Keywords
Aluminum Railway Carbody; Weight Reducing; Topology Optimization; Size Optimization;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Choi, Y. G., Shin, K. B. and Kim, W. H., 2010, “A Study on Size Optimization for Rocket Motor with a Torispherical Dome,” Trans. of the KSME A, Vol. 34, No. 5, pp. 567-573.   과학기술학회마을   DOI   ScienceOn
2 http://www.altair.com
3 Yoon, S. C., Kim, W. K., Hong, Y. K. and Pyun., J. S., 2003, “Structure Analysis and Loading Test of Body Structure having Aluminum,” Proc. of 2003 Korean Society of Railway Fall Conference, pp. 59-64.
4 Korea Railroad Research Institute, 1998, “Report on the Design of Aluminum Carbody of the K- EMU,” Report of Ministry of Land, Transportation and Maritime Affairs.
5 Suh, S. I. and Son, G. H., 1998, “A Study on the Optimum Design and Structural Behaviors of Aluminum Extrusions,” Journal of the Society of Naval Architects of Korea, Vol. 35, No. 1, pp. 88-97.
6 Jang, C. D., Ha, Y. S., Jo, Y. C. and Shin, K. B., 2003, “An Optimum Design for Truss Core Unit of Railway Carbody of Aluminum Extrusion Plate,” Journal of the Korean Society for Railway, Vol. 6, No. 3, pp. 194-202.
7 Kwun, T. S., 2002, “A Study on Topology Optimization Technique pplied to Extrusion Shape Determination of Aluminium Vehicle Structures,” Proc. of 2002 Korean Society of Railway Spring Conference, pp. 378-385.
8 Yoo, J. H., 2004, “A Study on the Topology Optimization in Magnetic Fields,” Trans. of the KSME A, Vol. 28, No. 4, pp. 370-377.   과학기술학회마을   DOI   ScienceOn
9 Yoon, M. S., Jang, G. W. and Park, J. H., 2008, “A Study on the Extremely Light Trailer Frame using Topology Optimization Technique,” Proc. of 2008 KSME Fall Conference, pp. 410-411.
10 Park, Y. O. and Min, S. J., 2009, “Structural Topology Design using Compliance Pattern based Genetic Algorithm,” Proc. of 2009 KSME CAE and Applied Mechanics Division, pp. 288-294.
11 Park, S. O., Yoo, J. H. and Min, S. J., 2010, “Topology Optimization of Perpendicular Magnetic Recording System by Considering Magnetic Nonlinearity,” Trans. of the KSME A, Vol. 34, No. 7, pp. 821-827.   과학기술학회마을   DOI   ScienceOn
12 Yasushi, S., 2006, “Current State and the Future of Aluminum Alloy Applications for Rolling Stock,” Journal of Japan Institute of Light Metals, Vol. 55, No. 11, pp. 584-587.
13 Lee, T. H., Lee, J. M., Jung, J. J., Hwang, W. J. and Kim, H. J., 2006, “Design Optimization of Double-deck Train Carbody under Multi-loading Condition,” Trans. of the KSME A, Vol. 30, No. 11, pp. 1472-1478.   과학기술학회마을   DOI   ScienceOn