The boundary layer dynamics of brake systems is characterized by the growth and destruction of hard and friction intensive patterns on the brake pad. These mesoscopic “patches” essentially determine the brake's global friction- and wear behavior. That paper shows, how, based on this theory, global phenomena can be simulated with an innovative dynamic friction law within different timescales. Subsequently a Cellular Automaton model is extended by the definition of additional inner variables describing a three-dimensional surface topography of brake pads. This model is applied to a longtime-simulation of the profile changing and a simulation regarding varying external loads. These results are compared to microscope-measurements of pads after different loading procedures which have a significant impact to the height profile.


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    Title :

    Surface Topography and Wear Dynamics of Brake Pads


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    24th Annual Brake Colloquium and Exhibition ; 2006



    Publication date :

    2006-10-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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