The ability to extend the valid frequency range for finite element based structural dynamic predictions using detailed models of the structural components and attachment interfaces is examined for several stiffened aircraft fuselage structures. This extended dynamic prediction capability is needed for the integration of mid-frequency noise control technology. Beam, plate and solid element models of the stiffener components are evaluated. Attachment models between the stiffener and panel skin range from a line along the rivets of the physical structure to a constraint over the entire contact surface. The finite element models are validated using experimental modal analysis results.


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    Title :

    Finite Element Model Development For Aircraft Fuselage Structures



    Conference:

    XVIII International Modal Analysis Conference ; 2000 ; San Antonio, TX, United States


    Publication date :

    2000-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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