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    Acoustic Mode and Structure Mode Analysis of Heavy Duty Truck Muffler

    Acoustic Mode and Structure Mode Analysis of Heavy Duty Truck Muffler


    To reveal the muffler acoustic performances and structure vibration characteristics, the computational fluid dynamical (CFD) model and finite element method (FEM) model were established. Acoustic analysis results show that the muffler not only has complex acoustic vibration modes, but also the mode frequency approximately equals the engine’s incentive frequency at rated speed, so the resonance may occur and the noise eliminating effect will be reduced. Structure vibration modal analysis shows that the muffler system has high natural frequency and the natural frequency is widely distributed. So while the engine runs at rated speed or idling speed, its natural frequencies are close to the engine exhausting incentive frequencies. It is the main cause that the muffler cannot reduce the noise effectively and needs further optimization.

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    Titel :

    Acoustic Mode and Structure Mode Analysis of Heavy Duty Truck Muffler

    Weitere Titelangaben:

    Lect. Notes Electrical Eng.

    Beteiligte:
    Wang, Guoquan (Autor:in) / Zhao, Cheng (Autor:in) / Zhang, Liangcheng (Autor:in) / Chen, Yong (Autor:in)
    Erschienen in:

    Proceedings of the FISITA 2012 World Automotive Congress ; Kapitel : 60 ; 1655-1668

    Lecture Notes in Electrical Engineering ; 196

    Erscheinungsdatum :

    2012-11-23

    Format / Umfang :

    14 pages

    ISBN :

    978-3-642-33738-3 , 978-3-642-33737-6

    ISSN :

    1876-1119 , 1876-1100

    DOI :

    https://doi.org/10.1007/978-3-642-33738-3_60

    Medientyp :

    Aufsatz/Kapitel (Buch)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Schlagwörter :

    Muffler , Acoustic mode , Structure vibration mode , Finite element method (FEM) , Modal test Engineering , Automotive Engineering , Engineering Design , Simulation and Modeling

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