The resolving equations for determining stress-strain state of thick-walled polymeric cylindrical shell under plane strain state with changes in temperature and highly elastic strains. Into law that describes the relation between stress and creep strain, the nonlinear equation of Maxwell-Gurevich. The solution is performed numerically using the finite element method.

Keywords: nonlinear creep, plastic cylinder, highly elastic deformation, the equation of Maxwell-Gurevich, finite element method, viscoelasticity, modulus of viscoelasticity, plane strain state, temperature.

Solved the inverse problem for a thick-walled cylinder, experiencing temperature and force action, under the plane of the axisymmetric problem of elasticity theory. By the variation of the modulus of elasticity, in which the cylinder is equally stressed by the Mohr's theory of strength. The problem is reduced to a differential equation of the first order. This equation was solved numerically, using the Runge-Kutta method of fourth order.

Keywords: thick-walled cylinder, optimization, heterogeneity, method, Runge-Kutta, temperature, flat axisymmetric problem

Discusses how to minimize the costs of supplying energy. Distribute streams of energy supplies from suppliers to consumers is required so that the total amount of expenses, losses and costs to a minimum, taking into account the implementation of all balance sheet constraints. In this regard, formalized model is built that allows you to implement a more efficient energy transportation technology, taking into account the requirements for sustainability of energy systems.

Keywords: analysis, energootrasl, distribution, negative consequences, minimizations of expenses, size of expenses, model, energy source

The article deals with self-induced and forced oscillations of the solid core massif on the elastic (Winkler) foundation. Perturbing forces are “inertial forces” of unstable equipment, established on the foundation-like massif. Taking into account some hypothesis, minor oscillations (reciprocal and torsion) across and relative to chief central inertion axis that are represented by the system of six differential equations. In the most general case natural vibration frequencies are regarded as solutions of septic determinants. The authors have worked out two particular cases that allow decreasing the order of determinants. In order to determine the frequency of oscillation of an external force “the disturbation forces” are represented in Fourier series. The article shows the results of numerical calculations for the simplest particular case of massif geometry.

Keywords: "massif, Winkler foundation, inertia weight and inertia moments, elastic foundation response, internal forces system, differential equations of motion, Fourier series, differential equations system determinants, natural vibration frequencies, resonance c

In the article the problem of localization of defects rassmrtirvaetsya concrete columns using methods of vibration diagnostics. Fault location technique based on the analysis of dynamic characteristics of the structure, such as natural frequencies and mode shapes. In this paper we study shows the finite element model of the column using the method of determining the index of structural damage. The results of localization with a different arrangement of the defect in the design.

Keywords: damage detection, reinforced concrete column

The technique of the research problem solution of influence of different types of concentrators on the stress-strain state of main gasline pipes involving compact flat specimen is considered. The algorithm of carrying out numerical experiment and its realization in the APDL language in the ANSYS is developed, one of possible forms of additional stress concentration – a circle is considered, and shown its influence on stress redistribution, the size and a form of area of a biaxial stress.

Keywords: stress-strain state, flat specimen, stress concentration, finite element method, automation of finite elements grid creation, defects in pipes, weld

At the present stage of development of the education system one of the main priorities is to develop a flexible system management capabilities of high school, the development of which would achieve the competitiveness of domestic universities at the international level, to provide training of highly qualified specialists to meet the needs of the present stage of scientific and technological development. One of the main aspects of the formation of a competitive university, along with a flexible system of educational services is an adaptive system of financial management, which is able to react quickly to rapidly changing internal and external conditions, so as to ensure the financial stability of the institution.

Keywords: education system, financial management, monitoring, effectiveness of budget expenditures, financial stability, flexibility, stability

The article presents a mathematical model of deformation of thin-walled conical shells, considering orthotropic material, geometric nonlinearity and transverse shear. Showing geometric relationships, physical relationships, the functional of total energy of deformation and boundary conditions.

Keywords: conical shell, tapered panel, mathematical model, geometric nonlinearity, orthotropic, lateral shifts

The article presents the results of experimental investigations of carbon fabric electrodes for recording electrical biosignals. Experimental studies of carbon fabric electrodes showed good results both in conductivity and usability, for example, for further integration into clothing, that indicates the high quality of carbon fabric electrodes and promising for further uses for cardiac monitoring.

Keywords: Electrodes, carbon fabric, electrical biosignals, cardiac monitoring.

Systems of passive damping of oscillations of high-rise constructions are considered. Their merits and demerits are revealed.  The roller  system of  oscillations indemnification  of the high-rise constructions subject to seismic influence is offered.  The principle of its work is described.  Advantages are estimated.

Keywords: high-rise construction, damping of oscillations, passive systems, roller system of indemnification, vibroisolation

With the use of pulsed laser deposition and carbothermal synthesis а photosensitive structure on the basis of the Schottky barrier Au/ZnO(nanorods)/ZnO(film)/ZnO(nanorods)/Au was obtained. The parameters of the carbothermal method of synthesis of nanorods ZnO were optimized. Under directly applied bias of 7V current sensitivity of luminous flux for this photodetector is observed in the UV and visible regions of the spectrum, and is 0.14 A/W - for 325 nm and 0.18 A/W - to 405 nm, which means that this structure has the ability of potential applications in various fields for the control of UV radiation (for example, for the monitoring of solar UV radiation, control of UV radiation in air and disinfecting water devices).

Keywords: ZnO nanorods, Schottky barrier, photodetector, photosensitivity

ZnO nanorod arrays have been synthesized on silicon wafers by chemical vapor deposition (CVD) technique with different  temperature modes, without metal catalyst.  With this method   vertically aligned ZnO nanostructures  were grown at the quite low temperatures.  Modification of the method allowed to place silicon substrates in areas with different  ratios of concentrations of the molecules in the vapor phase. Photoluminescence spectroscopy and electron microscopy studies have shown that morphologies and optical properties of nanorods depends on different ratios of concentrations of the molecules in the vapor phase.

Keywords: ZnO nanorods,chemical vapor deposition (CVD), photoluminescence

The arrays of ZnO nanorods were obtained on the sapphire substrates by means of pulsed laser deposition under the high pressure of argon. The conditions of synthesis were optimized, and their influence on the morphology of  ZnO nanostructures were revealed. It is shown that the concentration of oxygen vacancies in ZnO nanorods can be changed by regulation of the synthesis temperature from 850 to 915 °. This process can be controlled by the ratio of intensities of the photoluminescence emission in the visible and ultraviolet regions. So, it allows to create nanostructures for UV photodetectors or chemosensors depending on the temperature choice.

Keywords: ZnO nanorods, laser deposition, PLD, photoluminescence

We consider the design of reusable electrodes for long-term ECG monitoring integrated into clothing. Investigated high and low frequency distortion introduced the proposed electrode system. The comparison with the standard disposable electrodes for Holter ECG monitoring. It is shown that the electrodes in the frequency band 0.5-40 Hz quality as disposable.

Keywords: Electrodes, prolonged monitoring, electrocardiogram electrode device

Agent based model was developed. This model is showing processes of conflict, which is happening on the area of village Tarskoe. Conflict, which is called Osetino-Ingushskiy started in October 1992, and was not stabilized till today.

Keywords: agent base modeling, agent-based model, NetLogo

This article addresses the energy efficiency of heating systems. It describes the main requirements for modern heating networks. Reviews the main technological and engineering problem-solving tools of energy efficiency. Particular attention is paid to the comprehensive modernization of the old heating system. Offers cost-effective ways of redistribution of funds in the planning of operational costs and maintenance.

Keywords: energy efficiency, heating systems, thermal circuit, heating, water treatment, reconstruction

The question of the diagnosis of the state of building structures using non-destructive testing. These methods allow to predict the condition of structures to prevent accidents and, therefore, increase the service life of structures. The main objective of the study - assessment of changes in the vibration mode shapes method for the detection of structural damage , in the absence of forced uploading. The article describes the implementation of a mathematical method of vibration identification and localization of lesions of metal trusses . The results of the calculation for fault location triangular steel truss.

Keywords: Vibration diagnostics, fault detection, diagnosis, construction construction spans, trusses, trusses, defect, damage, vibration, localization, identification

The last ten years have seen a rapid growth of research related to the development of methods of localization of defects and assessment of technical condition of metal structures based on dynamic analysis. This paper presents the results of a study on the localization of defects arched steel truss. The main purpose of this article is to analyze the results of the damage index method and the development of the software module to localize structural damage. The results of numerical experiments presented in this article have shown the effectiveness of this method of localization of damage. The use of this method in practice will reduce the time of inspection by pre- defining a site design that are necessary to pay special attention during the field study.

Keywords: Vibration diagnostics, fault detection, diagnosis, construction construction spans, trusses, trusses, defect, damage, vibration, localization, identification

The solution of vibration problem for multilayered half plane with cavity of arbitrary shape is constructed using boundary element method. For the case of relatively much sunken cavity an asymptotic representations for fundamental solutions is used. The results of problem simulation for displacement and stress fields close to cavity surface are given using boundary element method

Keywords: multilayered environment, cavity of arbitrary shape, asymptotic analysis, boundary element method

Considered concrete cylindrical body in axisymmetric formulation (plane strain condition), exposure to radiation and temperature effects. The influence of physical fields on the mechanical characteristics of the material of the body individually or in the aggregate. It is shown that the stress-strain state of the cylinder, under the joint account of the different physical fields, is very different from the stress-strain state, obtained by summing the individual results of the calculation of each factor separately, that is, the superposition principle is not respected.

Keywords: temperature field, radiation, stress-strain state of the cylinder, the change of physical and mechanical parameters of the body

Scientific-research Laboratory and industrial tests of equipment for NDT methods ZBK".The Department ELA RSSU conducted a series of laboratory and industrial tests of the device developed at the Department of ELAH for concrete structure NDT methods. A schematic and a description of the pathogen fluctuations and semiconductor receiver, as well as diagrams of dependence of the passage of the amplitude of oscillations of the pathogen in the concrete structure of the axial load.The most important results are obtained dependence of the amplitude of oscillations in ZBK from the amount of axial load from the composition of fillers experimental sample.

Keywords: Nondestructive testing, reinforced concrete constructions, the causative agent of oscillations, the receiver oscillation, the amplitude of oscillations, axial load.

The influence of the amount of the addition асфальтогранулята on the properties of asphalt mixes and asphalt. Also considered is the impact of technology of filing асфальтогранулята on physical-mechanical properties of asphalt mixes.

Keywords: old asphalt, asphalt, astringent, physico-mechanical properties, homogeneity.

The problem of temperature stresses in revetments of concrete plates taking in the account various conditions of temperature impact is considered. Contact conditions for various friction coefficient are considered. The simulation is made using finite element method in Ansys © software. The examples of exact simulations for stress fields are given for different parameters of problem

Keywords: temperature stresses, concrete plate, finite element method

The application of asymptotic analysis method for displacement fields in environment is considered on the basis of special representation of motion equation solutions for multilayered half plane in the case of steady vibrations. The large parameter in suggested research method is distance from force source to supposed view point with glance of wave re-reflection from layer boundaries. The results of numerical simulation is given and the conclusion about the effectiveness of suggested method for construction of asymptotic expansion is given.

Keywords: Asymptotic expansion, Fourier integral, multilayered environment

This article addresses the energy efficiency of heating water boilers that produce energy required for heating, ventilation and hot water. We review the main technological and engineering problem-solving tools of energy efficiency. An integrated approach to the selection of the main and auxiliary process equipment described in this article can significantly improve the energy efficiency of the boiler as a whole.

Keywords: energy efficiency, boiler, thermal circuit, heat, water treatment