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- W1574842399 abstract "Dynamic train–track interaction is more complex in railway turnouts (switches & crossings) than on ordinary tangent or curved tracks. Multiple contacts between wheel and rail are common, and severe impact loads with broad frequency contents are induced when the nominal wheel–rail contact conditions are disturbed due to the continuous variation in rail profiles and the discontinuities in the crossing panel. The absence of transition curves at the entry and exit of the turnout, and the cant deficiency, lead to large wheel–rail contact forces and passenger discomfort when the train is switching into the turnout track. Two alternative multibody system (MBS) models of dynamic interaction between the train and a standard turnout design are developed. The first model is derived using a commercial MBS software. The second model is based on a multibody dynamics formulation that may account for the structural flexibility of train and track components (based on finite element models and coordinate reduction methods). The variation in rail profile is accounted for by sampling the cross-section of each rail at several positions along the turnout. Contact between the back of the wheel flange and the check rail, when the wheelset is steered through the crossing, is considered. Good agreement between the results from the two models is observed when the track model is taken as rigid." @default.
- W1574842399 created "2016-06-24" @default.
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- W1574842399 date "2004-01-01" @default.
- W1574842399 modified "2023-09-23" @default.
- W1574842399 title "Simulation of Dynamic Interaction between Train and Turnout" @default.
- W1574842399 hasPublicationYear "2004" @default.
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