Damping Properties of Vibrations of Three-Layer VIscoelastic Plate
International Journal of Theoretical and Applied Mathematics
Volume 3, Issue 6, December 2017, Pages: 191-198
Received: Sep. 28, 2017; Accepted: Nov. 3, 2017; Published: Nov. 30, 2017
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Safarov Ismail Ibrahimovich, Department of “Mathematics”, Tashkent Khimical-Technological Institute, Tashkent, Uzbekistan
Teshayev Muhsin Khudoyberdiyevich, Department of “Mathematics”, Bukhara Engineering-Technological Institute, Bukhara, Uzbekistan
Boltayev Zafar Ixtiyorovich, Department of “Mathematics”, Bukhara Engineering-Technological Institute, Bukhara, Uzbekistan
Akhmedov Maqsud Sharipovich, Department of “Mathematics”, Bukhara Engineering-Technological Institute, Bukhara, Uzbekistan
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The work is devoted to the study of harmonic waves in a hereditarily elastic plate with two viscoelastic coatings, the properties of the material, which are described by the equations of state in integral form. The fractional exponential function of Rabotnov and Koltunov-Rzhanitsyn was chosen as the kernel of the integral operator. Two cases are considered: the case of a stress-strain state symmetric and antisymmetric in the normal coordinate (VAT). In the study of natural oscillations, the properties of those modes that are time-dependent by harmonic law are investigated. For both cases, dispersion equations are derived, which are solved numerically. Asymptotics of the roots of dispersion equations for small and large frequencies are also obtained. The analysis of the obtained solutions made it possible to draw conclusions about the influence of hereditary factors on the behavior of dispersion curves. A comparative analysis of numerical solutions and their asymptotics is carried out.
Dispersion Equations, Stress-Strain State, Hereditarily Elastic Layer, Asymptotics
To cite this article
Safarov Ismail Ibrahimovich, Teshayev Muhsin Khudoyberdiyevich, Boltayev Zafar Ixtiyorovich, Akhmedov Maqsud Sharipovich, Damping Properties of Vibrations of Three-Layer VIscoelastic Plate, International Journal of Theoretical and Applied Mathematics. Vol. 3, No. 6, 2017, pp. 191-198. doi: 10.11648/j.ijtam.20170306.13
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