Optimal Design of the Aluminum Electrical Railcar under Uncertainty of Material Property

Tae Min Cho; Byung Chai Lee; Tae Soo Kwon

doi:10.4028/www.scientific.net/AMR.123-125.575

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 123-125Optimal Design of the Aluminum Electrical Railcar...

Optimal Design of the Aluminum Electrical Railcar under Uncertainty of Material Property

Abstract:

In this study, optimal design of the aluminum electrical railcar under uncertainty of material property is performed. The main structure of the aluminum electrical railcar is composed of aluminum extruded panel. The yield strength and thickness of the aluminum extruded panel are treated as random variables. The loading conditions are based on the standard specification. Stress and resonant frequency are the design constraints and obtained through finite element analysis. The results of reliability-based design optimization considering the uncertainty of material property are compared to those of deterministic optimization.

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Periodical:

Advanced Materials Research (Volumes 123-125)

Pages:

575-578

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.123-125.575

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Online since:

August 2010

Authors:

Tae Min Cho, Byung Chai Lee, Tae Soo Kwon

Keywords:

Aluminum Electrical Railcar, Material Property, Random Variable, Reliability Based Design Optimization (RBDO), Uncertainty

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References

[1] T.M. Cho and B.C. Lee: Journal of Mechanical Science and Technology, Vol. 24 (2010), p.279.

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[3] T.S. Kwon, H.Y. Lee, K.S. Lee and S.K. Choi: Proceedings of the Korean Society for Railway 1998 Fall Annual Meeting, p.455.

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[4] D.H. Lee et al.: Development of High Strength Aluminum Extruded Shapes (Ministry of Land, Transport and Maritime Affairs et al., South Korea 1999).

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[5] Ministry of Land, Transport and Maritime Affairs' Notification No. 2009-641, South Korea. (2009).

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