One of the common structure-borne noise problem of an automotive vehicle is the floor panel vibration. When the floor panel is excited by the external forces, either from the road surface or from engine power train, it tends to vibrate at one of its natural frequencies and generate undesirable noises. The hydraulic dampers, and rubber bushings plays an important role in the vibration and noise reduction. However, to select proper dampers and bushings for a vehicle to eliminate or to reduce this structure borne noise is not an easy task. This paper presents a systematic study on the sensitivities of modal parameters of the automotive vehicle floor panels, ie. resonant frequencies, damping coefficients, and mode shapes, with respect to different dampers (i.e. shock absorbers or struts) and rubber bushings installed inn automotive vehicle. The test results revealed the relationship between the filtering characteristics of the rubber bushing and the changes of its structure dyamics of a vehicle. In addition, the correlation between the frequency response function and the noise generated by the floor panel is also included.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Modal sensitivities of automobile vehicle floor panels


    Additional title:

    Modale Empfindlichkeit von Kraftfahrzeugbodenblechen


    Contributors:
    Cherng, J.G. (author) / Akin, T. (author)


    Publication date :

    1994


    Size :

    6 Seiten, 7 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Interative Computation of Modal Sensitivities

    Adrien Bobillot / Etienne Balmes | AIAA | 2006


    Automobile floor, floor assembly and vehicle

    YU BOTAO / CHEN DAOLIN / LIANG LEI et al. | European Patent Office | 2022

    Free access

    Modal sensitivities for repeated eigenvalues and eigenvalue derivatives

    SHAW, JINSIANG / JAYASURIYA, SUHADA | AIAA | 1992


    FLOOR PANELS FOR A VEHICLE AND METHODS

    MARQUEZ DURAN SERGI / AGIRRE MENTXAKA ANDONI / BARELLI VINCENT et al. | European Patent Office | 2023

    Free access

    FLOOR PANELS FOR A VEHICLE AND METHODS

    MARQUEZ DURAN SERGI / AGIRRE MENTXAKA ANDONI / BARELLI VINCENT et al. | European Patent Office | 2024

    Free access