A series of tests have been performed on a production vehicle to determine the characteristics of the external turbulent flow field in wind tunnel and road conditions. Empirical formulas are developed to use the measured data as source levels for a Statistical Energy Analysis (SEA) model of the vehicle structural and acoustical responses. Exterior turbulent flow and acoustical subsystems are used to receive power from the source excitations. This allows for both the magnitudes and wavelengths of the exterior excitations to be taken into account - a necessary condition for consistently accurate results. Comparisons of measured and calculated interior sound levels show good correlation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vehicle Wind Noise Analysis Using a SEA Model with Measured Source Levels


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lee, James J. (Autor:in) / DeJong, Richard G. (Autor:in) / Bharj, Tej S. (Autor:in)

    Kongress:

    SAE 2001 Noise & Vibration Conference & Exposition ; 2001



    Erscheinungsdatum :

    30.04.2001




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch