Multibody train analysis is used increasingly by railway operators whenever a reliable and timeefficient method to evaluate the contact between wheel and rail is needed. Particularly, the wheel-rail contact is one of the most important aspects that affects a reliable and time-efficient vehicle dynamics computation. The focus of the approach proposed here is to carry out such tasks by means of online wheel-rail elastic contact detection. In order to improve efficiency and save time, a main analytical approach is used for the definition of wheel and rail surfaces as well as for contact detection, then a final numerical evaluation is used to locate contact. The final numerical procedure consists in finding the zeros of a nonlinear function in a single variable. The overall method is based on the approximation of the wheel surface, which does not influence the contact location significantly, as shown in the paper.


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    Titel :

    A third-order approximation method for three-dimensional wheel-rail contact


    Weitere Titelangaben:

    Näherungsmethode dritter Ordnung für einen dreidimensionalen Rad-Schiene-Kontakt


    Beteiligte:

    Erschienen in:

    Vehicle System Dynamics ; 50 , 1-3 ; 431-448


    Erscheinungsdatum :

    2012


    Format / Umfang :

    18 Seiten, 18 Bilder, 18 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    A third-order approximation method for three-dimensional wheel-rail contact

    Negretti,D. / Univ.Tor Vergata,Roma,IT | Kraftfahrwesen | 2012




    Wheel-rail contact

    Bouteloup, M. | Engineering Index Backfile | 1949


    Wheel-Rail Contact

    Pfaff, Raphael | Springer Verlag | 2024