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http://dx.doi.org/10.3795/KSME-A.2013.37.7.945

Fatigue Strength Evaluation of Bogie Frame of Urban Maglev Train  

Han, Jeong Woo (Mechanical Systems Safety Research Division, Korea Institute of Machinery & Materials)
Kim, Heung Sub (Mechanical Systems Safety Research Division, Korea Institute of Machinery & Materials)
Bang, Je Sung (Mechanical Systems Safety Research Division, Korea Institute of Machinery & Materials)
Song, See Yeob (Applied Technology Research Team, Hyundai Rotem Company)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.7, 2013 , pp. 945-951 More about this Journal
Abstract
This study evaluated the fatigue strength of the bogie frame of an urban maglev train through fatigue analysis, cumulative damage, and fatigue tests based on a proposed fatigue evaluation method. The results of FEM analysis in which various load combinations were adopted showed that all data were under the fatigue limit of a butt welded joint made of A6005 in a Goodman diagram. The cumulative fatigue damage was calculated at the highest level from a bolt connecting the area of the electromagnetic pole in the casting block; however, the total sum was evaluated as D=0.808 based on $1{\times}10^7$ cycles, which indicates that it did not exceed the failure criteria. In addition, the results of the fatigue testshowed that there was no crack at any position in the bogie frame, which corresponded to the results of fatigue analyses.
Keywords
Urban Maglev Train; Bogie Frame; Fatigue Analysis; Fatigue Limit Diagram; Fatigue Test;
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