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    The effect of localised stiffening on the stability of a flexible panel in uniform flow

    Access Status
    Fulltext not available
    Authors
    Tan, B.
    Lucey, A.
    Howell, Richard
    Date
    2014
    Type
    Book Chapter
    
    Metadata
    Show full item record
    Citation
    Tan, B. and Lucey, A. and Howell, R. 2014. The effect of localised stiffening on the stability of a flexible panel in uniform flow, in Zhou, Y. et al (ed), Fluid-Structure-Sound Interactions and Control: Proceedings of the 2nd Symposium on Fluid-Structure-Sound Interactions and Control, pp. 325-330. Berlin: Springer.
    Source Title
    Lecture Notes in Mechanical Engineering
    DOI
    10.1007/978-3-642-40371-2_46
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/30231
    Collection
    • Curtin Research Publications
    Abstract

    The three-dimensional stability of a fluid-loaded flexible panel is studied to determine the effectiveness of adding localised stiffening to control or postpone instability. A hybrid of computational and theoretical modelling is used to cast an eigenvalue problem for the fluid-structure system. It is shown that the addition of each of transverse and streamwise stiffening strips postpones divergence onset but for the former there is a threshold strip stiffness above which no further postponement is possible. Streamwise stiffening is additionally shown to be effective for increasing post-divergence flutter-onset flow speeds while in aero-elastic applications a transverse stiffening strip can be used to replace flutter instability with divergence. The present results suggest a relatively economical and practicable way to ameliorate panel instability in both hydro- and aero-elastic applications.

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