V.I.Kozlov, V.G.Karnaukhov, V.M.Sichko, A.V.Zavgorodnii Forced resonance vibration and dissipative heating of a three-layered thick-wall simply supported viscoelastic cylindrical panel with temperature-independent properties |
Acoustic bulletin, Vol. 13 ¹ 1, (2010) |
| The paper deals with solving of coupled three-dimensional problem on forced harmonic vibration and dissipative heating of a viscoelastic three-layer thick cylindrical panel with simply supported edges under action of uniform harmonic external surface pressure. Coupling of the mechanical and thermal fields is taken into account and the material properties are chosen independent from temperature. A finite-element method is developed for solving of the dynamic viscoelastic problem and the problem of a thermal conductivity with known thermal source. For the panel vibrating on the first bending mode, the amplitude- and temperature-frequency characteristics have been calculated as well, as dependencies of natural frequency, damping coefficient, maximal amplitude and heating temperature on the thickness of damping middle layer of the panel. |
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KEY WORDS: viscoelasticity, forced vibration, layered shells, dissipative heating, the finite-element method |
| TEXT LANGUAGE: Russian |