The nature of the contact and pressure at the interface between the friction material pad and the disc rotor of a ‘spot’-type disc brake affects the performance of a brake in terms of torque, temperature distributions and wear. Interface contact and pressure distributions have been predicted for a particular design of floating caliper passenger car disc brake, using three-dimensional finite element analysis under static and dynamic brake actuation conditions.

    The influence of friction material compressibility, pad backplate thickness, coefficient of friction, caliper flexure, disc stiffness and actuating piston contact with the piston bore on the interface pressure distribution is examined. The effect upon brake performance is discussed in terms of ‘centre of pressure’ and corresponding braking torque, and in terms of observed effects such as temperature and wear distribution. The results confirm that in order to ensure consistent disc brake performance the interface pressure distribution should be carefully controlled by designing in mechanical rigidity, compliant friction materials and minimum compliance during brake operation.


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    Titel :

    Disc Brake Interface Pressure Distributions


    Beteiligte:
    Tirovic, M (Autor:in) / Day, A J (Autor:in)


    Erscheinungsdatum :

    01.04.1991


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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