Vol 21, No 4 (2013)

Articles
Risk analysis method for ensuring the safety of industrial enterprises
Bukanov F.F., Vorozheikin V.N.
Abstract
A method of risk analysis while ensuring the safety of an industrial enterprise is offered. The method in question is based on the probabilistic approach in risk assessment, and the use of statistical data on failures of system and sub-system components, both technical and physical. The proposed method uses the graph theory, i. e. drawing fault and event trees.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):7-13
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Uniqueness estimation technique of the electronic map's fragments based on the fuzzy logic
Demidova L.A., Myatov G.N.
Abstract
Uniqueness estimation technique of the electronic geographical chart's fragments is considered. The technique uses uniqueness of the mean square deviation of mapping contours of objects on a chart as а description of thechart's fragment uniqueness. The mean square deviation is calculated on the basis of the classical linear regression. Feasibility of using additional characteristics for the estimation of uniqueness of electronic chart's fragments is shown. It is offered an approach to the uniqueness estimation of the electronic chart's fragments based on an application of a fuzzy linear regression with an asymmetrical triangular accessory function, which provides an execution of more exact differentiation of electronic chart's fragments by means of introduction of additional characteristics of uniqueness. The mapping technique of unique electronic chart's fragments is offered. The mapping technique uses fuzzy measures of similarity of objects contours on the chart.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):14-26
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Performance analysis of dynamics research by generalized ranking (Part 1 - Forecast)
Livshits M.Y., Tsapenko M.V., Davydov A.N., Barbolin D.A.
Abstract
The paper deals with the analysis of the dynamics of the efficiency of scientific research based on the generalized method of ranking - Data Envelopment Analysis. In this article the results of multicriteria estimation of the efficiency of the dynamics of scientific research on the example forecasts of scientific studies on priority directions of modernization of the Russian economy. The materials presented in two parts: the first part addressed issues of forecasting performance of scientific research, in the second - a generalized ranking performance.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):27-36
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Multiparameter control of communication cables production based on predictive models
Mitroshin V.N.
Abstract
A methodology for automating the production of wired communication cables using advanced process control (APC-systems) based on predictive models to ensure the required quality of the cable as a communication channel based on its bandwidth is proposed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):37-44
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The optimal control system of collective investments under Markowitz's model
Sarkisov V.G.
Abstract
A new approach to collective trust management is offered. Optimum investment portfolios of a pool of investors with various preferences under Markovits's model are treated.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):45-52
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Structural and parametric synthesis of unstable object control systems
Starikov A.V., Lisin S.L.
Abstract
The synthesis of a control system for a third-order unstable object is discussed. A method for structural construction of an unstable-object control system is offered. Regulator transfer functions to ensure high speed are found.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):53-58
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Optimization of multiconnection control by means of the simplex method
Chostkovsky B.K., Denisov V.U., D'yakonov A.I.
Abstract
The use of various kinds of cross-regulation in multivariable generalized parameter control system, and the application of the simplex method for optimization of controller parameters are discussed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):59-66
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The analysis of influence of the quantization error on result of measurement of harmonious signals integrated characteristics
Ivanov Y.M.
Abstract
The results of analyzing the error of realization of a measuring method for harmonious signals integrated characteristics which is caused by the quantization of signals instant values are discussed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):67-71
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Synthesis and research of pvd-coatings obtained using multicomponent SHS-pressed cathode based system Ti-B-Si
Altukhov S.I., Asmolov A.N., Bogdanovich V.I., Ermoshkin A.A., Latukhin E.I.
Abstract
The results of studies of the properties of PVD-coatings obtained using multicomponent cathodes of 40% TiB +40% Ti 5Si 3 +20% Ti and 30% TiB +50% Ti 5Si 3 +20% Ti on the "Union" and "HHB-6.6" in compared with the base coating TiN. It is shown that the combined properties of the coatings obtained using multicomponent cathodes on the "HHB-6.6" outperform similar coatings obtained at the "Union".
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):72-76
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Analysis of the ways to improve the plating quality
Kretov S.S.
Abstract
On the basis of practical experience and analysis of the publications the ways to improve the plating quality are given.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):77-82
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Continuum model of elastic properties of isotropic porous materials with empirical functions of porosity
Fedotov A.F.
Abstract
The continuum model of isotropic elastic modules of porous materials was considered. This model is used as the calculated dependences of the empirical function of porosity for one-dimensional phenomenological models. According to the results of approximation phenomenological models which most accurately describe the experimental data for metallic and ceramic porous materials were determined. The proposed continuum model allows to calculate the others modules of elasticity by using the known dependence between porosity and modulus of elasticity.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):83-91
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Applicability evaluation of the method of direct and inverse impact for determining the properties of internal anti-corrosion coatings pipelines
Yudin P.E., Akulinin A.A.
Abstract
The paper compares the methods of direct and reverse impact testing of internal anti-corrosion coatings of oil and gas pipes and makes a conclusion on the applicability of the reverse-impact method for the quality evaluation of pipes with internal anti-corrosion coatings.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):92-97
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Model of the support of the spindle on bearings rolling
Gasparov E.S., Denisenko A.F., Gasparova L.B.
Abstract
The question is considered creation of mathematical model of a bearing support of a spindle. The model will be able to describe the mechanism of formation a signal of vibration, having connected it to parameters of a technical condition.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):98-105
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Aviation method of landing of woods and others types of plants with application pyrotechnic holders
Zacharov I.V., Aleksentseva S.E.
Abstract
The efficiency problem засева extensive territories of the Russian Federation and zones with any is superficial-geological specificity large forests and other kinds of plants is investigated. The purpose of the developed method - fast economic restoration of green weight. The aviation method of disembarkation of woods and other plants by capsules of a seed material by dump from an aviation board manually or with application of pyrotechnic cartridges without presence of the person and technics on the earth is developed. The method organisation is developed. The design of the pyrotechnic cartridge from non-polluting materials is offered. Aerodynamic forms of seed capsules are developed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):106-113
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Oscillations in the railway car truck
Romen Y.S., Klebanov I.M., Soldusova E.A.
Abstract
A complete system of differential equations of the railway car truck dynamics is introduced. This system is to determine the loads exerted on truck elements and to improve car movement stability and safety.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):114-119
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Residual stress and elastic deformation fields evaluation for heated cylindrical specimen
Smyslov V.A.
Abstract
The problem of cylindrical specimen surface layer stress-strain state evaluation after surface plastic hardening and following heating is investigated. It is shown, that due to Young’s modulus change during the temperature stressing essential residual stress fields change happens. Results for cylindrical specimens, strengthened under different technologies, are introduced.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):120-125
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The simulation of the finite-element method of bearing collar heating during race grinding
Fokin V.G., Dmitriev V.A.
Abstract
The results of the computer simulation by means of the finite-element method in 2D for heating a bearing collar during external grinding are presented. Programs are written allowing to investigate heating bearing collars of various standard sizes in a variety of grinding modes.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):126-131
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Mathematical analysis of automated process of the cylindrical details assemble
Chernyahovskaya L.B.
Abstract
The vertical scheme of assembly of cylindrical details, during which one of them is fixed, and the other one moves, leaned on the edge of the other one, was analyzed. The fundamental laws of their matching were established. The trajectories and the velocities of the points located on the moving detail surface were determined. The equations of the centrodes rigidly connected to the details were obtained. The method of the calculation of the minimal assembling forces was proposed. The method of calculations of the range of minimal values of the forces both assembling and preventing from the assembling the details was proposed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):132-142
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Combined operating conditions optimization of variable-frequency and fixed electric drives for reservoir-pressure maintenance system pumps
Abakumov A.M., Mukhortov I.S., Bilalov F.F.
Abstract
A method of solving the combinatorial optimization problem of selecting combined operation modes of electric drives for reservoir-pressure maintenance system pumps combining variable-frequency and fixed electric drives is discussed,the estimation of some options to equip the pumps with variable-frequency drives, and of their energy efficiency being given.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):143-148
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Performance analysis of properties of powertransformers with a core of amorphous materials and protection them using surge arresters
Goldstein V.G., Inahodova L.M., Kazantzev A.A., Molochnikov E.A.
Abstract
This paper was supported by the Ministry of Education of the Russian Federation (state contract 14.516.11.0111 from 14.10.2013 y.).It describes the foreign operating experience and design features of amorphous magnetic circuit transformers. The feasibility of their use in the distribution networks of the Russian Federation is stated. The results of the simulations to replace traditional transformers with amorphous-steel cor transformers are presented. The necessity to improve overvoltage protection by means of surge arresters is pointed out.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):149-157
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Investigation of temperature and thermal stress state of boiler drums heat power plants
Kolesnikov S.V., Kuznetsova A.E., Stefanuk E.V., Branfileva A.N., Abisheva L.S.
Abstract
The results of investigations of temperature and thermal stress state of boiler steam drum in the area of the holes for accession furnace tubes are provided.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):158-164
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Comparison of mass and thermal properties of convective heat exchange surfaces
Schelokov A.I., Krasnova N.P.
Abstract
Thepaper is devoted to comparison of mass and heat exchange properties of different convective surfaces. Flue pipes and spiked surfaces are considered. Convective heat transfer of these surfaces is shown.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):165-168
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Structural-parametric synthesis of multiloop automatic control system of initial oil refining technological process
Afinogentov A.A., Pleshivtseva Y.E., Setin S.P., Snopkov A.S.
Abstract
Structural analysis and parametric synthesis of automatic control system of initial oil refining technological process on AVT unit is produced with engineering design procedure based on alternance parametric optimization method.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):169-180
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Research of gas running through burner type AGG
Petchnikov A.S., Grigoryan L.G.
Abstract
Coefficients of gas rate for burners type AGG-2, AGG-3 and AGG-4 are determined by experimental data. It allows to calculate dynamic parameters for these burners during designing of fuel burning systems.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):181-185
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the design of high-safety instant-action electric blasting cap for the shotfiring in petroleum industry. The improvement of efficiency and safety of the construction
Postnov S.I., Kozhevnikov E.A., Gidaspov A.A., Rekshinskiy V.A.
Abstract
For the high-safety instant action electric blasting cap (BC-I-HS) with no primary explosives in construction the application of the inner cant in the axis channel of the metal cylindrical confinement (MCC) was offered. It was experimentally proved that the application of the MCC with the cant can improve the efficiency of the BC-I-HS. This improvement makes it possible to use more nonhazardous high explosives than the RDX as the main charge of the BC-I-HS.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):186-192
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On maximum likelihood estimation of characteristics of stationary stochastic process with exponential correlation function
Volkov I.I., Fedorov S.V.
Abstract
We discuss a simple algorithm for evaluating the characteristics of a stationary stochastic process with exponential correlation function which does not require solving a system of nonlinear equations.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):193-196
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Numerical-analytical model of a distributed parameter plant with variable structure
Danilushkin I.A.
Abstract
The paper is about the problem of implementation of the numerical-analytical model of the diffusion process that flows in a reactor with a variable rate of flow. The author offers an approach to the implementation of the model in simulating software for dynamic systems with lumped parameters based on a change of orthogonal basis in the moment of changing the flow rate.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):197-201
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Initiation of detonation by collisional waves in fill-up and water-filled industrial cyclonite
Krivchenko A.L., Klyuster I.A.
Abstract
The paper deals with the detonation of fill-up and water-filled industrial cyclonite. The critical diameter and pressure for the initiation of industrial cyclonite detonation have been determined. It is shown that these parameters are almost identical to those of crystallized RDX, a slight change in sensibility being due to air inclusions in the RDX grains .
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):202-205
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The method and system of measurement of integrated characteristics with use of orthogonal making signals
Melent'ev V.S., Muratova V.V., Jaroslavkina E.E.
Abstract
The new method of measurement of integrated characteristics of the harmonious signals, based on comparison orthogonal making voltage is considered. The block diagram of the information-measuring system realizing a method is resulted. Influence of quantization of instant values of signals on an error of result of measurement of integrated characteristics is analyzed.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):206-209
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Building systems of autonomous robots, with ability to memorize and restore their structures in the space
Patkin M.L., Yudashkin A.A.
Abstract
The solution describes the methods of synthesis the communicating mobile robot capable to memorize and restore configuration on the plane. Configuration sets the coordinates of the robots. Population of robots dynamics sets nonlinear differential equations in complex numbers. Achieved design and physical parameter modeling system of mobile robots with ultrasonic navigation system that implements the connection between the individual robots and obtained preliminary estimates using such a navigation system for the synthesis of mobile robots with multiple memory configurations.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):210-213
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Synthesis production rule system of digital controllers
Rogachev G.N.
Abstract
The article is devoted to the synthesis of digital controllers as systems of their rules. The article considers the main stages of the synthesis procedure, describes the benefits of such an approach.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):214-217
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Comprehensive study of solidified paraffin oil shear process in a pipeline
Tian V.K., Pimenov A.V.
Abstract
This paper presents a systematic approach to syntesis of starting pressure shifts, based on experimental data.
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):218-221
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Approximate regression-type models for analysis of aluminium alloys continuos ingots solidification
Yakubovich E.A.
Abstract
The paper deals with the technique of approximate mathematical models production based on the data of the aluminium alloys ingots cooling regime parameters in the continuous casting process
Vestnik of Samara State Technical University. Technical Sciences Series. 2013;21(4):222-224
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