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Three-Dimensional Vibration Characteristics of Piezoelectric Semi-Spherical Shell
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</div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 87358</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Three-Dimensional Vibration Characteristics of Piezoelectric Semi-Spherical Shell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yu-Hsi%20Huang">Yu-Hsi Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ying-Der%20Tsai"> Ying-Der Tsai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Piezoelectric circular plates can provide out-of-plane vibrational displacements on low frequency and in-plane vibrational displacements on high frequency. Piezoelectric semi-spherical shell, which is double-curvature structure, can induce three-dimensional vibrational displacements over a large frequency range. In this study, three-dimensional vibrational characteristics of piezoelectric semi-spherical shells with free boundary conditions are investigated using three experimental methods and finite element numerical modeling. For the experimental measurements, amplitude-fluctuation electronic speckle pattern interferometry (AF-ESPI) is used to obtain resonant frequencies and radial and azimuthal mode shapes. This optical technique utilizes a full-field and non-contact optical system that measures both the natural frequency and corresponding vibration mode shape simultaneously in real time. The second experimental technique used, laser displacement meter is a point-wise displacement measurement method that determines the resonant frequencies of the piezoelectric shell. An impedance analyzer is used to determine the in-plane resonant frequencies of the piezoelectric semi-spherical shell. The experimental results of the resonant frequencies and mode shapes for the piezoelectric shell are verified with the result from finite element analysis. Excellent agreement between the experimental measurements and numerical calculation is presented on the three-dimensional vibrational characteristics of the piezoelectric semi-spherical shell. <iframe src="https://publications.waset.org/abstracts/81423.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=piezoelectric%20semi-spherical%20shell" title="piezoelectric semi-spherical shell">piezoelectric semi-spherical shell</a>, <a href="https://publications.waset.org/abstracts/search?q=mode%20shape" title=" mode shape"> mode shape</a>, <a href="https://publications.waset.org/abstracts/search?q=resonant%20frequency" title=" resonant frequency"> resonant frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=electronic%20speckle%20pattern%20interferometry" title=" electronic speckle pattern interferometry"> electronic speckle pattern interferometry</a>, <a href="https://publications.waset.org/abstracts/search?q=radial%20vibration" title=" radial vibration"> radial vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=azimuthal%20vibration" title=" azimuthal vibration"> azimuthal vibration</a> </p> <a href="https://publications.waset.org/abstracts/81423/three-dimensional-vibration-characteristics-of-piezoelectric-semi-spherical-shell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81423.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">234</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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