Results 11 to 20 of about 124,655 (304)

Calculation methods for plate and beam elements of box-type structure of building [PDF]

open access: yesE3S Web of Conferences, 2021
The article is devoted to the dynamic calculation of the box-type structure of buildings for seismic resistance, taking into account the spatial work of the box elements under the influence of dynamic impact.
Mirsaidov Mirziyod   +2 more
doaj   +1 more source

Steady-state forced vibrations [PDF]

open access: yesInternational Journal of Non-Linear Mechanics, 1966
The following concepts are defined: (i) periodic functions possessing an amplitude, (ii) cosine-like functions, (iii) steady-state forced vibrations. The following theorems are proved: I. If, in $\ddot{x} + f(x) = P g(t) P g(t + T)$, $x(0) = X \neq 0$, $0 < P < \infty$, $-\infty < t < + \infty$, $g(t)$ is cosine-like, a necessary condition for the ...
openaire   +1 more source

Some considerations of fundamental solution in micropolar thermoelastic materials with double porosity

open access: yesArchives of Mechanics, 2016
This paper is concerned with micropolar thermoelastic materials which have a double porosity structure. The system of the equations of the assumed model is based on the equations of motion, equilibrated stress equations of motion and heat conduction ...
R. Kumar, R. Vohra, M.G. Gorla
doaj   +1 more source

The effect of working parameters upon elastohydrodynamic film thickness under periodic load variation [PDF]

open access: yes, 2020
There are a number of widely used machine components, such as rolling element bearings, gears and cams, which operate in the lubrication regime known as Elastohydrodynamics (EHD), where lubricant film thickness is governed by hydrodynamic action of ...
Félix‑Quiñonez, Armando   +3 more
core   +1 more source

Fundamental solutions in the full coupled theory of elasticity for solid with double porosity

open access: yesArchives of Mechanics, 2013
This paper discusses the full coupled linear theory of elasticity for solids with double porosity. The system of the governing equations is based on the equations of motion, conservation of fluid mass, the constitutive equations and Darcy’s law for ...
M. Svanadze, S. De Cicco
doaj   +1 more source

A coarse grained model of granular compaction and relaxation [PDF]

open access: yes, 1997
We introduce a theoretical model for the compaction of granular materials by discrete vibrations which is expected to hold when the intensity of vibration is low.
Ben-Naim E   +10 more
core   +2 more sources

Boundary value problems of steady vibrations in the theory of thermoelasticity for materials with a double porosity structure

open access: yesArchives of Mechanics, 2017
The purpose of the present paper is to develop the classical potential method in the linear theory of thermoelasticity for materials with a double porosity structure based on the mechanics of materials with voids.
M. Svanadze
doaj   +1 more source

Nonequilibrium Steady State in Vibrating Granular Gases [PDF]

open access: yesProgress of Theoretical Physics Supplement, 2006
Statistical properties of nonequilibrium steady states in vibrating granular gases in an slightly tilted container are investigated in terms of the discrete-element method. It is found that the steady behavior of this granular flow is difficult to be described by the steady Fokker-Planck equation with Coulomb friction.
Hisao Hayakawa, Atsushi Kawarada
openaire   +1 more source

Potential method in the theory of thermoelasticity for materials with triple voids

open access: yesArchives of Mechanics, 2019
In the present paper the linear theory of thermoelasticity for isotropic and homogeneous solids with macro-, meso- and microporosity is considered. In this theory the independent variables are the displacement vector field, the changes of the volume ...
M. Svanadze
doaj   +1 more source

Steady-State Harmonic Vibrations of Viscoelastic Timoshenko Beams with Fractional Derivative Damping Models

open access: yesApplied Mechanics, 2021
Due to growing demands on newly developed products concerning their weight, sound emission, etc., advanced materials are introduced in the product designs. The modeling of these materials is an important task, and a very promising approach to capture the
Michael Klanner   +2 more
doaj   +1 more source

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