In early phases of the product development of clutch or brake systems not every component, especially the facing is not available in its finish shape. Therefore the friction behavior is investigated by using a generic shape of the desired facing material. In order to predict the behavior of the friction material in full ring form for the future application simulative and experimental methods are needed. This chapter presents a method to describe the dynamic behavior of a drivetrain with a dry running clutch, whose facing is not available in a full ring form, but in segment or pellet form. The chapter deals on the one hand with the opportunities of the transfer of the tribology behavior from low test level (segment or pellet shape) to high test level on the example of a dry running clutch and on the other hand it is also an objective to connect the results (behavior of the friction coefficient) of the experimental investigations with the simulation model of the future drivetrain to predict the dynamic behavior. In order to achieve the research objective the first step is to identify the influence of the facing shape on the friction coefficient. In several experimental investigations on a clutch test bench, which represents the drive train stiffness and inertia, the influence of the shape form on the friction coefficient was identified. In addition to that the influences on the tribological behavior of the test bench (rotational stiffness, thermal mass, providing of the axial force) are also important and need to be known. Furthermore the mounting of the friction pairs on the test bench has a huge influence on the temperatures during the synchronizations, the wear and the friction coefficient and is also analyzed. Beside the experimental investigations a detailed simulation model of the test bench was build up, which considers the mechanical (stiffness, inertia, damping) characteristics and the electric engines of test bench. After having identified the influence of the shape form of the facing on its tribological behavior it is possible to predict the dynamic behavior of a full ring facing on the test bench by using the results of a e.g. segmented facing, the transfer function and the simulation model.


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    Titel :

    Methods for Clutch Dimensioning


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Albert, Albers (Autor:in) / Ott, Sascha (Autor:in) / Merkel, Philipp (Autor:in)


    Erscheinungsdatum :

    02.11.2012


    Format / Umfang :

    10 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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