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Prediction of Fatigue Life of High-Speed Bogie Frame Due to Flexible Tracks
ISSN: 2195-1381
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Prediction of Fatigue Life of High-Speed Bogie Frame Due to Flexible Tracks
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Abstract
The fatigue life of a bogie frame is essential for the operation and service life of the entire high-speed train. However, during the operation of the train, it experiences external excitations resulting from track irregularities and flexibility of the track. These excitations affect vertical and lateral contact forces which are transmitted directly to the bogie frame and thus affect the fatigue life. Thus this study presents an investigation about the influence of track irregularities and track flexibility on the dynamic response of the high speed bogie frame and proposes a method for predicting the fatigue life of the bogie frame. The detailed study on the bogie frame was conducted using finite element, Ansys workbench for static analysis and flexible track, Matlab for track irregularities and SIMPACK dynamics software for multibody system analysis. Analysis was carried out at different speeds to determine their effects on the bogie...
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