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    ARTICLE

    Modeling and Measurement of a Tunable Acoustoelastic System

    Deborah Fowler1, Garrett Lopp2, Dhiraj Bansal3, Ryan Schultz4, Matthew Brake5, Micah Shepherd6

    Sound & Vibration, Vol.52, No.3, pp. 12-17, 2018, DOI:10.32604/sv.2018.03864

    Abstract Acoustoelastic coupling occurs when a hollow structure’s in-vacuo mode aligns with an acoustic mode of the internal cavity. The impact of this coupling on the total dynamic response of the structure can be quite severe depending on the similarity of the modal frequencies and shapes. Typically, acoustoelastic coupling is not a design feature, but rather an unintended result that must be remedied as modal tests of structures are often used to correlate or validate finite element models of the uncoupled structure. Here, however, a test structure is intentionally designed such that multiple structural and acoustic… More >

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