Based on the test results, a study on the scattering of the standard coefficients cdyn and delta within the test cycles on a standard testing machine as well as within the samples of a batch of hydraulic engine mounts is performed; furthermore, an estimate for the systematic error caused by the testing machine is given. By a simulated example, the pronounced sensitivity of the response of the engine to the scattering of cdyn and delta as well as to even small deviations of the hysteresis curves for otherwise identical values of the standard coefficients is demonstrated. As a main result, it is found that the most important source of uncertainty is scattering within the batch, which, in conjunction with the observed sensitivity of the response of the engine, raises the question for the meaningful level of sophistication of a model for predictive purposes.


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    Titel :

    On the scattering of test data and the significance of the standard coefficients 'dynamic stiffness' and 'loss angle' for hydraulic engine mounts


    Weitere Titelangaben:

    Über die Streuung von Versuchsdaten und die Bedeutung von Standardbeiwerten 'dynamische Steifigkeit' und 'Verlustfaktor' bei hydraulischen Motorbefestigungen


    Beteiligte:
    Mitsch, Marcus (Autor:in) / Mack, Werner (Autor:in) / Falkner, Anton (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 48 , 3 ; 387-403


    Erscheinungsdatum :

    2010


    Format / Umfang :

    17 Seiten, 11 Bilder, 1 Tabelle, 14 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch







    Adaptive Hydraulic Engine Mounts

    Graf, Peter L. / Shoureshi, Rahmat / Houston, Terry L. | SAE Technical Papers | 1986


    Adaptive hydraulic engine mounts

    Shoureshi,R. / Graf,P.L. / Houston,T.L. et al. | Kraftfahrwesen | 1986