The inverse boundary element method (IBEM) is presented to accurately identify the noise sources of a diesel engine in this study. The sound pressures on four near-field planes were measured as inputs for the method. Then, the acoustic model of the full diesel engine was established using the boundary element method, and the acoustic transfer vectors (ATV) between the surface normal velocity and acoustic pressure at field points were calculated over the frequency range of interest. Based on the measured sound pressure and the ATVs, the surface normal velocity distribution of the diesel engine was reconstructed by the IBEM. The reconstructed pressures at two reference field points were compared with the measured ones. Furthermore, the panel contribution of each engine component was analyzed through the reconstructed surface velocity. The results show that the IBEM method is well suited for the noise source identification of a diesel engine because it accurately reconstructs the surface normal velocity using only a low number of sound pressure measurement points.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Noise Source Identification of a Diesel Engine Using Inverse Boundary Element Method


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Chen, Da-liang (Autor:in) / Shu, Ge-qun (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2008



    Erscheinungsdatum :

    14.04.2008




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    2008-01-0729 Noise Source Identification of a Diesel Engine Using Inverse Boundary Element Method

    Shu, G.-q. / Chen, D.-l. / Society of Automotive Engineers | British Library Conference Proceedings | 2008


    Identification of AeroAcoustic Noise Sources Using Inverse Boundary Element Method

    Martinus, F. / Herrin, D. W. / Tao, Z. et al. | British Library Conference Proceedings | 2005


    Identification of AeroAcoustic Noise Sources Using Inverse Boundary Element Method

    Seybert, A. F. / Herrin, D. W. / Martinus, F. et al. | SAE Technical Papers | 2005


    An analytical method of noise source identification using boundary element technique

    Jlang,J.K. / Whittlesey,M.W. / Analysis and Design Application,US | Kraftfahrwesen | 1989