A Wheel Passing a Crossing Nose- Dynamic Analysis under High Axle Loads using Finite Element Modelling

Martin Pletz, Werner Daves, Heinz Ossberger

Research output: Contribution to journalArticleResearchpeer-review

39 Citations (Scopus)


A finite element model for the process of a wheel passing a crossing is presented. In the dynamic model, one wheel, the wing rails and the crossing nose (frog) are modelled. The bogie, the complete wheel set and the support of the crossing are represented as a system consisting of masses, springs, dampers and friction-generating elements. The rolling/sliding behaviour between the wheel and crossing is studied using the proposed model. Due to the conical shape of the wheel tread and multiple contacts between the wheel and the crossing parts, sliding occurs during the transition of the wheel from the wing rail to the crossing nose or vice versa. At the same time, an impact occurs that produces high contact forces. The parameters of the model are the train speed and passing direction, the wheel and the crossing geometry, the axle load and the support of the crossing. In this paper, the crossover process is studied for high axle loads and compared with results of simulations using a normal axle load. Further parameters are three train velocities, both directions of passing and different crossing materials. The loading of the crossing nose is calculated for all cases (axle load, train speed and direction) and materials.
Translated title of the contributionÜberlauf eines Rads über ein Weichenherzstück- Dynamische Analyse von hohen Achslasten mit der finitre Elemente Methode
Original languageEnglish
Pages (from-to)603-611
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers. Part F, Journal of rail and rapid transit
Issue number6
Early online date29 May 2012
Publication statusPublished - 10 Oct 2012

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