Magazine of Civil Engineering, No.9(44), 2013
The special. Proceedings of the conference "Mathematical and Computer
Simulation in Mechanics of Solids and Constructions
Boundary & Finite Elements Methods" (BEM&FEM 2013)
for this half-year
Meleshko V.A., Khertek U.Kh., Rogovoy Yu.A.
This article describes the results of experimental and numerical
simulation of flow layout sheds station building "Olympic Park". The
experimental results of the station model are presented.The station
model is analyzed using ANSYS CFX to model the air flow and to
determine the aerodynamic parameters. Navier – Stokes
were solved using the SST turbulence model.
A.V. Vorobyev, G.G. Kashevarova
Surface subsidence prediction is needed to evaluate mechanical safety
and make it possible to provide further operation of buildings located
in subsided area. The process of surface subsidence is studied by means
of adaptive model of short-term time sequence prediction. The aim of
adaptive forecast method is to build self-adjusting mathematical models
that can show time-varying conditions and give accurate evaluation of
given time sequence elements. Such models are primarily used for
I.N. Serpik, A.V. Alekseytsev
The search for the solution was
carried out using genetic algorithm. The computational scheme included
the following main steps: finding the
optimal embodiment taking into account the conditions of normal use of
the building; performing calculations of this object in the static and
dynamic formulations in the assumption of local damages with the
estimation of dynamic coefficient for each considered emergency action;
optimal design of the construction with the calculations of the damaged
rod systems in a quasi-static formulation using the obtained dynamic
O.A. Sergeyev, V.G. Kiselev, S.A. Sergeyeva
The aim of this paper is to pose and solve weight optimization problem
of bar structures with constraints on faultless operation probability
of a structure and constraints on design variables. Optimization method
is based on a quadratic approximation of the objective function and a
linear approximation of constraints on faultless operation probability
of rod structures with random defects.
A.R. Arutyunyan, R.A. Arutyunyan
The reliability problem of complex mechanical systems composed of some
number of elements with the crack type defects, which growth rate is
essentially governed by the processes of corrosion fatigue, was
considered. Among these systems there are different engineering
constructions: energetic, transport, chemical and others.
The article touches upon an algorithm of aimed parameters of the
plastic damping development in seismic isolation systems taking into
account low-cyclic fatigue. All the phases of damper bars plastic
resource determination in the shuttle-type plastic damping seismic
isolation systems have been considered.
G.M. Kadisov, V.V. Chernyshov
Solutions to the problem of cable-stayed bridge dynamics are received
and analysed on the basis of two modelling options.
L.U. Sultanov, R.L. Davydov
In this paper a method of numerical studies of elastic-plastic bodies
with finite deformations is considered. Constitutive relations obtained
using the elastic potential in the flow theory. For plasticity
condition Huber – Mises hardening condition criterion is
Incremental loading procedure is used, where allowing the variation
equation is derived from the principle of virtual powers in the current
L.U. Sultanov, L.R. Fakhrutdinov
In this paper, the research method of large deformations of
hyperelastic solids using the Finger strain measure is considered.
A.S. Gorshkov, A.G. Makarov, A.A. Romanova, P.P.
In this paper
the defining equation of nonlinear viscoelasticity of oriented polymers
was worked on the basis of ideas about the existence of different
conformational states of groups of macromolecules separated by an
energy barrier. To describe the behavior of oriented polymers the
concept of quantum deformation was introduced and kinetics of
structural transitions groups of macromolecules through an energy
barrier was also considered.