This paper describes more in detail the methodology, the measurements and the results of the ASQ method. The Airborne Sound Quantification method aims at identifying the acoustical contribution of the different body panels surrounding a cavity. The contribution of different body panels is the product of the acoustical strength (or volume velocity) of each panel with the corresponding acoustic transfer function between the panel and the interior microphone position. These volume velocities are the product of the corresponding normal velocity and the surface. The normal velocity has been measured by means of accelerometers attached to the different subpanels. In the next step, the acoustical FRF's are measured in an indirect way using the reciprocity principle. This means that the pressure response at all the subpanels is measured when the acoustical excitation takes place at the target interior noise microphone position. A high quality low frequency sound source has been used. Finally, this synthesized interior noise has been compared with the directly measured interior noise. The correlation between both proved to be very good and the most dominant body panels have been successfully identified.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Body Panel Contribution Analysis for Road Induced Interior Noise of a Passenger Car


    Additional title:

    Sae Technical Papers


    Contributors:
    Lee, H. K. (author) / Ha, S. W. (author) / Hendricx, Wim (author) / Choi, Y. B. (author)

    Conference:

    SAE Noise and Vibration Conference and Exposition ; 1997



    Publication date :

    1997-05-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Experimental body panel contribution analysis for road induced interior noise of a passenger car

    Hendricx, W. / Choi, Y.B. / Ha, S.W. et al. | Tema Archive | 1997


    Experimental Body Panel Contribution Analysis for Road Induced Interior Noise of a Passenger Car

    Hendricx, W. / Choi, Y. B. / Ha, S. W. et al. | British Library Conference Proceedings | 1997



    Interior sound field refinement of a passenger car using modified panel acoustic contribution analysis

    Han, X. / Guo, Y. J. / Yu, H. D. et al. | British Library Online Contents | 2009