Abstract
We study problems involving the acoustic insulation of cylindrical shells of finite length made of a composite material. The motion of the medium (a gas) is described by the usual wave equation of acoustic approximation, and the equations of the applied theory of composite shells are used to describe the vibrations of the shell. To determine the levels of sound suppression the finite-element method is applied for both the medium and the shell.
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Literature Cited
V. V. Vasil'ev,Mechanics of Structures of Composite Materials [in Russian], Mashinostroenie, Moscow (1988).
A. G. Gorshkov, “Aeroacoustics of composite cylindrical shells,” in:Proceedings of the International Symposium on “Dynamic and Engineering Problems of the Mechanics of Structures and Solid Media” [in Russian], Moscow State Aviation-Technical University (1997), pp. 43–44.
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Translated fromMatematychni Metody ta Fizyko-Mekhanichni Polya, Vol. 41, No. 1, 1998, pp. 47–50.
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Gorshkov, A.G. Sound insulation of composite cylindrical shells. J Math Sci 97, 3805–3807 (1999). https://doi.org/10.1007/BF02364917
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DOI: https://doi.org/10.1007/BF02364917