The investigation of in-plane vibration of a noisy disc brake is problematic because it is difficult both to measure and to verify. Because of the disc structure and the inability to visualize disc in-plane vibration, there has been reluctance by researchers to accept the contribution of a displacement parallel to the surface of the object, or in-plane displacement, to noise generation. In addition to measuring absolute displacement, it has been difficult to isolate the in-plane and out-of-plane components of displacement using either non-contact or conventional displacement measurement techniques. This paper investigates absolute displacement of a brake disc during noise generation. Double-pulsed holographic interferometry is used to record a series of time-related images of the brake head from three different angles of observation. Because each image views the brake head from a different perspective, each of them records a different degree of in-plane and out-of-plane displacement. By careful analysis of the three images, it is possible to isolate the in-plane displacement from the out-of-plane displacement. The time-related series allows the displacement to be investigated over a full cycle of excitation and so create an animation of the mode of vibration. It is seen that the in-plane displacement is complex and that its amplitude may be about twice that of the out-of-plane displacement.


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    Titel :

    The measurement of the absolute displacement of a noisy disc brake


    Weitere Titelangaben:

    Messung absoluter Verschiebung bei einer lärmintensiven Scheibenbremse


    Beteiligte:
    Fieldhouse, J.D. (Autor:in) / Steel, W.P. (Autor:in) / Talbot, C.J. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    20 Seiten, 21 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    The measurement of the absolute displacement of a noisy disc brake

    Fieldhouse, J D / Steel, W P / Talbot, C J | SAGE Publications | 2008


    The measurement of the absolute displacement of a noisy disc brake

    Fieldhouse,J.D. / Steel,W.P. / Talbot,C.J. et al. | Kraftfahrwesen | 2008



    MEASUREMENT OF ABSOLUTE DISPLACEMENT OF A TWIN CALIPER DISC BRAKE DURING NOISE

    Fieldhouse, J. D. / Steel, W. P. / Talbot, C. J. | British Library Conference Proceedings | 2005


    Absolute Displacement Measurements of a Disc Brake During Self Generated Noise

    Fieldhouse, J. | British Library Conference Proceedings | 2006