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A Study on Material Substitution Design and Evaluation Method for Structural Components of Rolling Stocks  

구정서 (한국철도기술연구원)
정현승 (한국철도기술연구원)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.4, 2004 , pp. 74-84 More about this Journal
Abstract
In this paper, a theoretical method was derived to redesign carbody members by substituting light-weight materials, and to estimate their structural characteristics. Some performance indices to estimate structural behaviors were derived in order to obtain equivalent designs in case of material substitutions under important design constraints of rolling stock, such as bending stiffness, natural frequency, bending and buckling strength. Validity of the theoretical method was evaluated by comparing its results with finite element results in some examples where the aluminium alloy was substituted for the structural steel. The numerical results of the examples show that the proposed method gives reasonable initial guesses for the material substitution designs.
Keywords
Light-weight materials; Material substitution; Initial design; Structural performance indices; Finite element method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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