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한정우(J. W. Han),김흥섭(H. S. Kim),김재동(J. D. Kim),송시엽(S. Y. Song),최정용(J. Y. Choi) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
This study evaluated fatigue strength for bogie frame of an urban maglev train including performing fatigue analysis, cumulative damage and fatigue test based on a developed fatigue load. The results of FEM analysis adopting load combinations showed that all data was under a fatigue limit of the butt welded joint made of A6005 in Goodman diagram. The cumulative fatigue damage was calculated at the highest level from a bolt connecting area of electromagnetic pole in casting block but the total sum was evaluated as D=0.808 based on 1×10?cycles, which indicates it did not exceed the failure criteria. In addition, as the results of fatigue test, there was no crack on the any position of the bogie frame with the results that correspond to the results of fatigue analyses.