A twin calliper brake system is investigated using the whole body visual technique of holographic interferometry. It is shown that the disc mode of vibration has a preferred position where a disc antinode is situated under one calliper and a disc node under the second calliper. The maximum angular space occupied by the pad antinode is, as predicted by the theoretical study of the disc/pad interface geometry, the angle subtended by the pad length. For a four-piston opposed calliper the minimum distance is slightly larger than the piston centers. There is evidence that the disc mode position, in relation to the two callipers, may be antinode/node, node/node or antinode/antinode. With these arrangements an accompanying revised theoretical study of the disc/pad interface geometry predicts two stable conditions are possible - if the callipers are positioned either at an angle between 125° to 130° or 165° to 175°. The smaller angle was not tested but the brake became quiet at angles greater than 166°. A brief study of the calliper modes and pad spring retainer is included in the holographic results.


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    Titel :

    A Visual Experimental Noise Investigation of a Twin Calliper Disc Brake


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    18th Annual Brake Colloquium And Engineering Display ; 2000



    Erscheinungsdatum :

    2000-10-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A visual experimental noise investigation of a twin calliper disc brake

    Fieldhouse,J.D. / Beveridge,C. / Univ.of Huddersfield,GB | Kraftfahrwesen | 2000


    A Visual Experimental Noise Investigation of a Twin Calliper Disc Brake

    Fieldhouse, J. D. / Beveridge, C. / Society of Automotive Engineers | British Library Conference Proceedings | 2000


    EXTENDING THE UNDERSTANDING OF BRAKE NOISE - AN INVESTIGATION OF A NOISY TWIN CALLIPER DISC BRAKE

    Fieldhouse, J. D. / Beveridge, C. A. / European Automobile Engineers Cooperation et al. | British Library Conference Proceedings | 2001


    Extending the understanding of brake noise - an investigation of a noisy twin calliper disc brake

    Fieldhouse,J.D. / Beveridge,C. / Univ.of Huddersfield,GB | Kraftfahrwesen | 2001


    In-Plane Vibration Investigations of a Noisy Twin Calliper Disc Brake

    Crampton, Andrew / Talbot, Chris J. / Fieldhouse, John D. et al. | SAE Technical Papers | 2003