Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 4

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: równanie dyspersji

Sortuj według:

Ogranicz wyniki do:

Rayleigh wave propagation in isotropic sandy layer sliding over isotropic sandy semi-infinite medium with sliding contact

Madan Dinesh Kumar, Kumar Naveen, Rani Annu

International Journal of Applied Mechanics and Engineering

2023

Vol. 28, no. 1

58--70

The present study aims to investigate Rayleigh wave propagation in an isotropic sandy layer overlying an isotropic sandy semi-infinite medium, with interface considered to be imperfect (slide contact and dislocation like model). Expressions for displacement components are obtained using the variable separation method. The dispersion frequency equation for the Rayleigh wave propagating in sandy media is derived using suitable boundary conditions. Particular cases, such as when the interface is in smooth contact and when sandy media are replaced by elastic media, are also discussed. Using MATLAB software, the effects of the imperfectness parameter (slide contact and dislocation like model) and sandy parameter on the Rayleigh waves’ phase velocity are investigated and compared with the already obtained results of the dislocation like model. The present study may find useful applications in geophysics, civil engineering and soil mechanics.

The effect of viscosity and heterogeneity on propagation of G-type waves

Gupta S., Smita

International Journal of Applied Mathematics and Computer Science

2017

Vol. 27, no. 2

253--260

Earthquakes yield motions of massive rock layers accompanied by vibrations which travel in waves. This paper analyses the possibility of G-type wave propagation along the plane surface at the interface of two different media which is assumed to be heterogeneous and viscoelastic. The upper layer is considered to be viscoelastic and the lower half space is considered to be an initially stressed heterogeneous half space. The dispersion equation, as well as the phase and group velocities, is obtained in closed form. The dispersion equation agrees with the classical Love type wave. The effects of the nonhomogeneity of the parameters and the initial stress on the phase and group velocities are expressed by means of a graph.

Controllability of mixed Volterra–Fredholm type integrodifferential third order dispersion equations

Kumar M., Sukavanam N.

Journal of Applied Analysis

2015

Vol. 21, nr 1

1--7

In this paper, we establish a result concerning the controllability of a mixed Volterra–Fredholm type integrodifferential third order dispersion equation. The result is obtained by using the theory of strongly continuous semigroups and the Banach fixed point theorem.

Istnienie i jednoznaczność rozwiązania problemu propagacji fali powierzchniowej w niejednorodnej izotropowej półprzestrzeni sprężystej

Klecha T.

Prace Instytutu Podstawowych Problemów Techniki PAN

1998

nr 11

3-11