Disc brake squeal is investigated by integrating the complex eigenvalue analysis using finite element software ABAQUS with statistical regression techniques using CCD. The non-linear effects are taken into account in the preloading steps in order to more accurately model a deformed configuration at which a complex eigenvalue analysis is performed. The effects of back plate Young's modulus, chamfer of the edges, distance between two slots, angle of slots, the interaction between the back plate Young's modulus and the distance between the two slots, and the quadratic terms of the back plate Young's modulus and the distance between the two slots on disc squeal are significant. A mathematical prediction model is developed based on the most influencing factors and the validation simulation experiments prove its adequacy. The model was used to develop an optimal pad design that resulted in a minimum damping ratio and hence minimum brake squeal. Under certain conditions, the minimum damping value, DR = -0.53, is achieved when back plate Young's modulus was between 222 Mpa to 225 Mpa and the distance between the two slots was 44 mm to 46.5 mm while the chamfer of the edges was set at 30 mm and slot angle 0 degree levels.


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    Title :

    Reducing disc brake squeal through FEM approach and experimental design technique


    Additional title:

    Minderung des Quietschen von Scheibenbremsen mit Hilfe der FEM und experimentellen Konstruktionstechnik


    Contributors:
    Abdo, Jamil (author) / Nouby, M. (author) / Mathivanan, D. (author) / Srinivasan, K. (author)


    Publication date :

    2010


    Size :

    17 Seiten, 9 Bilder, 5 Tabellen, 29 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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