This paper presents a correction and an extension of the FASTSIM approach for the computation of the wheel–rail creep forces. The correction concerns the variants of FASTSIM using a single flexibility value. Kalker's formula for this gives up to too large flexibility in situations with mixed creepage, underestimating the creep forces by . This is corrected using new approaches for the flexibilities' combination. The extension concerns the variants of FASTSIM using three flexibility values. These variants misrepresent the creep force direction at large creepage. This is resolved using a blending approach, that roughly halves the errors of FASTSIM compared to CONTACT.


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    Title :

    Improved accuracy for FASTSIM using one or three flexibility values


    Contributors:

    Published in:

    Vehicle System Dynamics ; 61 , 1 ; 309-317


    Publication date :

    2023-01-02


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




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