Kopychko O. Normal waves in surrounded with a liquid anisotropic layer

Thesis is devoted to theoretical numerical – analytical research of dispersion spectra, and also cinematic and energetic properties of normal waves in an elastic anisotropic layer orthorhombic system which completely or on one of the boundary surfaces contacts with half-spaces of ideal or viscous liquid. Dispersion relations for normal waves are constructed and investigated in the cases of their propagation along elastic – equivalent and non-elastic – equivalent directions in a plane of a layer. Full dispersion spectra of normal waves with various symmetry of wave movements as to thickness of a wave guide, cinematic and energetic characteristics of waves, properties of parameters for energetic dispersion and asymptotic behaviour of waves are designed and analyzed. Effects of transformation for full dispersion spectra of normal waves are investigated at the change of a direction of propagation and separate effects density influence and liquid viscosity on structure of spectra.