A frequency domain substructure method is employed for deriving the motion transmissibility equation on a coupled structure. Various errors in its experimental implementation are investigated by numerical calculations in order to identify the most important source of errors so that future effort can be more focused. The interfaces with and without the tangential and rotational DOF's are taken into account when the DOF deficiency error is studied. By decomposing the DOF deficiency error into different components, it is shown that all six interfacial DOF's must be taken into account for general structures. The bias, noise, and underflow errors are investigated and their relative importance is compared with the DOF-deficiency error. It reveals that these three errors are moderate in nature and can be handled with traditional methods while there is no simple way to compensate for the DOF deficiency error. However since there are no mature methods to find rotational FRF from tests, the DOF deficiency error presents a real hurdle to experimentally use the substructure methods. Subsequent efforts should be targeted on how to extract the full set of interfacial frequency response functions that include both translational and rotational DOF's.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Various Errors in Substructure Testing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2001 Noise & Vibration Conference & Exposition ; 2001



    Erscheinungsdatum :

    30.04.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Modal Damping Predictions Using Substructure Testing

    Ellison, A. M. / Jones, W. E. | SAE Technical Papers | 1972


    Substructure coupling for dynamci analysis and testing

    Craig, Roy R. / Chang, Ching-Jone | TIBKAT | 1977



    VEHICLE SUBSTRUCTURE

    KURANO TAKAFUMI | Europäisches Patentamt | 2021

    Freier Zugriff

    VEHICLE SUBSTRUCTURE

    MATSUSHIMA YUKI / SAKURADA CHIHIRO / TAKAHASHI KOICHI | Europäisches Patentamt | 2021

    Freier Zugriff