Viscoelastic Vibrations of a Layered Composite with Internal Frictionстатья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
Аннотация:The article considers the problem of viscoelastic vibrations of a layered composite material of two pairwise alternating layers. Three types of layer materials with different properties are considered. The first case is two elastic materials with internal dissipation of mechanical energy, which is described by an integral term of the convolution type with an exponential kernel. The second case is a layered composite of elastic materials with Kelvin-Voigt friction, and finally, in the third case, the internal dissipation in the layers of the material is described by the fractional Kelvin–Voigt friction. We consider the transverse vibrations of this layered composite and give a qualitative picture of the behavior of the spectra. The purpose of this work is to reveal the influence of internal friction for its various models on the vibration spectrum. This technique can be used to create building materials with predetermined properties, for example, for sound insulation.