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            <title xml:lang="en">Hydroelastic and Vibroacoustic Behavior of Shells of Revolution</title>
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            <idno type="halRefHtml">&lt;i&gt;ASME 1997 International Mechanical Engineering Congress and Exposition&lt;/i&gt;, Nov 1997, Dallas, United States. pp.549-556, &lt;a target="_blank" href="https://dx.doi.org/10.1115/IMECE1997-0152"&gt;&amp;#x27E8;10.1115/IMECE1997-0152&amp;#x27E9;&lt;/a&gt;</idno>
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                <title xml:lang="en">Hydroelastic and Vibroacoustic Behavior of Shells of Revolution</title>
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              <p>We propose two numerical models which couple the Finite Elements Method to the Boundary Elements Method. These models are designed to study the hydroelastic or vibroacoustic behavior of shells of revolution immersed in an unbounded fluid. The axisymmetric thin shell is idealized into two-node conical Ring Finite Elements. The Boundary Integral representation of the unbounded exterior fluid is discretized in two ways. The first approach uses a plane panel Boundary Element to idealize the solid-fluid interface. This quadrangular element supports constant densities of singularities. The second solution has led us to develop new Ring Boundary Elements. These elements are similar to Ring Finite Elements and make it possible to model a section of the fluid-structure interface. In this formulation, the densities of singularities are expanded in Fourier series of the circumferential variable. The coupling of Ring Finite Elements and Ring Boundary Elements widely reduces the classical numerical difficulties associated to coupled problems such as important CPU time and large storage memory.</p>
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