| 제목 |
철도차량 구조부품의 소재대체 설계 및 평가기법 연구 |
| 분야 |
기타 |
| 언어 |
Korean |
| 저자 |
구정서(한국철도기술연구원), 정현승(한국철도기술연구원) |
| Key Words |
Light-weight materials(경량화 소재), Material substitution(소재대채), Initial design(초기설계), Structural performance indices(구조성능인자), Finite element method(유한요소법) |
| 초록 |
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 ol 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. |
| 원문(PDF) |
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