This paper describes the use of digital measurements to assess acoustic intensity close to the various surfaces of a two litre gasoline engine. Using phase-locked data acquisition an acoustic power balance is constructed for the engine which is shown to correlate well with three other methods - lead covering, average surface vibration level and close microphone. However, the prediction of sound pressure level from these power balances is shown to be difficult, at least at 1 m from the surface. A simple relationship between acoustic intensity and sound pressure level in the frequency domain has been found.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Digital Acoustic Intensity Techniques in Gasoline Engine Noise Studies


    Additional title:

    Sae Technical Papers


    Contributors:
    Anderton, D. (author) / Abe, T. (author)

    Conference:

    SAE International Congress and Exposition ; 1982



    Publication date :

    1982-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Digital Acoustic intensity Techniques in Gasoline Engine Noise Studies

    Abe,T. / Amderton,D. / Univ.of Southampton,Inst.of Sound and Vib.Res.,GB | Automotive engineering | 1982


    Application of Acoustic Intensity Measurement to Engine Noise Evaluation

    Chung,J.Y. / Pope,J. / Feldmaier,D.A. et al. | Automotive engineering | 1979


    SMALL GASOLINE ENGINE MANUFACTURING TECHNIQUES

    Linn, A. / Ferguson, F. C. / Stuckert, F. J. et al. | SAE Technical Papers | 1958


    Reducing noise from gasoline engine injectors

    French,M. / Nowland,M. / Hedges,D. et al. | Automotive engineering | 2004


    APPLICATION OF ACOUSTIC INTENSITY MEASUREMENT TO ENGINE NOISE EVALUATION

    Feldmaier, D. A. / Pope, J. / Chung, J. Y. | SAE Technical Papers | 1979