한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2000년도 춘계학술대회 논문집
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- Pages.234-241
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- 2000
대차프레임의 피로설계 및 피로강도 평가
Fatigue Design and Fatigue Strength Evaluation of Bogie Frame
초록
Stress analysis of the bogie frame by using the finite element method has been performed for the various loading conditions according to the results of vehicle dynamics analysis. Multiaxial fatigue analysis methods such as signed von Mises method, and typical critical plane theories were reviewed, and margin of safety for fatigue is defined. Multiaxial fatigue analysis program to predict the margin of safety of bogie frame under non-proportional loading conditions has been developed by using a commercial command language. Fatigue analysis of bogie frame under multiaxial loading was performed through this program and finite element analysis result. The procedure developed in this study is considered to be useful for the fatigue strength analysis in preliminary design stage of railway components under multiaxial loading condition.
키워드