In this paper it is demonstrated how the finite element method may be used to simulate the development of hot spots on block braked wheel treads. It is assumed that the phenomenon is caused by thermoelastic instability. The equations that describe the development of corrugations on block braked wheel treads are discretized using the finite element method. The perturbations of temperatures and distortions are described by an amplitude function, which is spatially fixed multiplied by a sinusoidal running wave term of fixed wavelength. The governing equations are such that the wave term cancels out. Only the amplitude functions are discretized in the finite element model. The intermittent nature of the contact is directly specified through the boundary conditions. Results are obtained for a simplified two-dimensional model of a train wheel. These results agree with analytical results.


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    Title :

    Finite element analysis of thermoelastic instability with intermittent contact


    Additional title:

    Finite-Elemente-Analyse der thermoelastischen Instabilität bei intermittierendem Kontakt


    Contributors:

    Published in:

    Publication date :

    2000


    Size :

    5 Seiten, 7 Bilder, 11 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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