Numerical analysis plays a significant role in the development of passenger comfort in modern vehicles. Customer perception of quality and comfort is largely influenced by the vibro-acoustic properties of a vehicle. Numerical simulation models of sufficient quality for predicting these characteristics are highly complicated and large numbers of eigenvalues are necessary to enable accurate analysis through the required frequency-range. It follows that extensive computational resources are required and calculation times are long.

    This paper describes the generation and use of so-called FRF-Substructures, a modern technique in model reduction for frequency-response analysis in Nastran. Using a practical example of a Mercedes-Benz S-Class model it is shown how FRF-Substructures can significantly increase the efficiency of frequency-response calculations. This enables the evaluation of multiple model variations and complex load-cases in a reasonable time. Further, the advantages of FRF-Substructures are shown by comparison with the traditional superelement approach. Finally, a brief outlook on further uses of the FRF-Substructure technique are addressed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    In-vehicle Analysis of Powertrain-Induced Noise Using FRF Substructures


    Weitere Titelangaben:

    Proceedings


    Beteiligte:
    Siebenpfeiffer, Wolfgang (Herausgeber:in) / Visser, René (Autor:in) / Fiedler, Uwe (Autor:in) / Chargin, Mladen (Autor:in) / Kreissig, Volker (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    24.01.2020


    Format / Umfang :

    7 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Deutsch




    In-vehicle Analysis of Powertrain-Induced Noise Using FRF Substructures

    Vissler, René / Fiedler, Uwe / Chargin, Mladen et al. | TIBKAT | 2020


    Vehicle powertrain noise diagnosis using acoustic holography techniques

    Patro,T.N. / Ford Motor,US | Kraftfahrwesen | 1997



    Vehicle Powertrain Noise Diagnosis Using Acoustic Holography Techniques

    Patro, T. N. / Society of Automotive Engineers | British Library Conference Proceedings | 1997