58 articles in this issue
V. L. Gorobets,Yu. I. Savin
In the article the mathematical model describing the process of changing a limit of durability of the railway rolling stock materials and structures with taking into account the change of parameters of durability curve during loading them is presented.
S. V. Pylypenko,O. M. Bondarev,V. L. Ghorobets,O. I. Gilevych,V. V. Gluhov,K. I. Zheleznov,V. P. Litvinov,Ye. F. Fedorov,O. M. Zabolotnyi,D. O. Yaghoda
In the article the results of dynamic running and traction-energy tests of the electric locomotive VL40U are presented. In accordance with the test results a conclusion about the suitability of electric locomotive of such a type for operation with trains ... see more
A. V. Radkevych,L. ?. Bondarenko,S. O. Yakovlev
The history of wheel in an initial period of its development from a viewpoint of physical possibilities of the animals domesticated by a man is traced. It is proved that coming from the last achievements of wheel age the history of humanity must be revise... see more
T. V. Sheleiko
Results of research of a corrosion damage of the H-beam center girder of a gondola car of model 12-532 at the end of normative service life are presented. On the basis of data obtained the empirical probability curves for operation of each part of the H-b... see more
Yu. Ya. Vodiannikov,O. V. Grechko,S. O. Stoletov
Results of research of the brake disk heating temperature under the brake shoe lining during the regulating braking of a passenger train are presented. It is established that the greatest temperature in the disk arises at an exit of a brake shoe lining on... see more
M. I. Kapitsa
The purpose of work is determination of the rational system of maintenance of the hydromechanical transmission of diesel locomotives of a series ???4 for the beforehand set reliability of locomotive fleet with minimum expenses of funds and labour capacity... see more
L. M. Loboiko,Yu. S. Barash,O. O. Karas
In the paper the procedure of organization of traffic of day-and-night trains, various kinds of looping of passenger train sets, their drawbacks and advantages are presented.
P. D. Andrienko,A. O. Kaplienko
The model of direct current traction substation, with the subsequent carrying out on this model the research of electromagnetic processes on the substation in a mode of recuperation with energy absorption devices for inclusion of which contactless switche... see more
M. Kanaevski,A. Roek,A. Bialonj
The paper presents the OCL tests that have been carried out from the year1994 inthe PKP’s infrastructure, and which aim at construction of an OCL adapted for high speeds. Described were following OCL 2C120-2C-3 (modernised) and new type YC150-2CS150 and Y... see more
V. H. Kuznetsov,M. O. Ivanov,F. O. Fichoryak
The methods of determination of electric energy consumption norms that can be used for forecasting the own needs of DC traction substations are offered in the paper.
O. O. Marenych
In this article the following problem has been considered: ways of efficiency increase for electric drives installed at the railway machinery repair enterprises taking into account the specific conditions of technological processes.
O. L. Marenych,O. O. Marenych
In this article the following problem has been considered: ways of power factor increase for electric drives installed at the railway machinery repair enterprises with taking into account the specific conditions of technological processes.
O. I. Tyuryutykov
The problems of creation of monitoring system for electrical networks taking into account the quality of electric energy are considered in this article.
O. I. Bielorusov,V. V. Novikov
In the given publication it is proved that in calculations of maximum dangerous width of a rail track it is necessary to consider both plays and presence of tolerances at manufacturing the elements of rail fastenings.
K. Ts. Glavatskyi
The directions of combining the working members of soicompressing machines and technologies of their application for speeding up the effective compression of soil in the foundation of track are presented.
I. P. Korzhenevych
The possibility of determination of the required clearance widening by not on tables but on formulas is under consideration.
M. M. Biliaiev,O. Yu. Gunko,S. O. Sachuk
The 3D model to simulate the pollutant transfer near building after accidents was developed. The model is based on the transport gradient model and the model of inviscid imcompressible fluid. The results of numerical experiments are presented.
Yu. V. Zelenko,Chzhu Zhui
The principles and requirements to conduction of elimination measures after emergency emissions of the oil products are presented. The device for conduction of local cleaning of soil from the light oil products with their utilization is developed.
I. V. Tytarenko,Ye. V. Khrystian
The existing scheme solutions of the combined vaporizing air conditioning are considered, proposal for a solution by the thermoelectric unit is performed. The mathematical model and the experimental unit are presented.
O. V. Chernyshova,Ye. V. Khrystyan,I. V. Tytarenko
In the article the evaporation cooling and spray (aqueous and air-to-water) types of the air-conditioning systems are considered, their merits and demerits are analyzed; the new scheme of a conditioner is offered.
I. H. Haniiev
Approximate formulae for the residual resource of spans in dependence on the wear accumulated are determined.
M. I. Kazakevych
The major concepts of the elaboration and realization of the bridge construction monitoring systemic approach are presented in this paper. The main peculiarity of the bridge monitoring modern aspect is pointed out here, namely, the transition from the dem... see more
O. B. Kazarin,B. O. Kazarin,D. Ye. Husiev,H. P. Pastushkov,V. ?. Pastushkov,D. V. Zhykharev
In the paper the practical and analytical aspects of research methodology for a tunnel casings by georadar technologies are presented.
V. V. Kovalenko
In the article the optimization of chemical composition of the wear-resistant economically alloyed Cr-Mn cast irons microalloyed with aluminum is realized by means of the quasi-D-optimum plan ?f Pesochinski over the mechanical and microstructural paramete... see more
V. V. Kovalenko,Yu. L. Zayats,T. P. Reshetnyak,P. O. Pshinko
The methods of increasing the physic?-mechanical, technological properties and durability of concrete, mortars and reinforced concrete are presented in the paper. The influence of basic plasticizers, dispersed and complex additions on the operation proper... see more
V. V. Kovalenko,I. V. Kupenko,O. Yu. Prokopov,S. V. Karhapolov
On the basis of laboratory explorations the features of conducting the corrosive process in the shaft reinforcement parts under the load from lifting buckets and rock mass were determined.
V. P. Kozhushko
The problem of methods of spatial computation of spans of different structures has been considered. The possibility of application of simplified computation methods allowing to take into account both resilient and non-linear deformations as well as to est... see more
O. I. Lantukh-Liashchenko
This paper presents an assessment and prediction of service life for reinforced concrete bridges. The deterministic and probabilistic approach prediction models of durability are proposed.
Y. Y. Luchko,A. Ya. Pentsak,R. Ya. Pelekh
The problem of connection of high-strength carbon and thermomechanically strengthened reinforcements is considered in the paper. The analysis of results of previous investigations from world practice is conducted. The construction of connection is offered... see more
V. D. Petrenko,V. T. Huzchenko,O. L. Tiutkin
In the article the results of numerical analysis of tensions and deformations of railway embankment with the variants of its strengthening by reinforced concrete plates and compensative layer are presented.
O. Yu. Prokopov,M. V. Prokopova
The urgency of methodical provision of planning of foundations for buildings erected next to existing ones is ?onsidered. It is based on studying the causes of extension of deformations of structures in conditions of dense city building system. Some recom... see more
O. M. Pshinko,O. V. Krasniuk,T. V. Ulchenko
The theoretical justification of research of injection parameters and setting the regime of mortar motion in a pipeline by compressed air jet is presented.
O. V. Radkevych
In the paper the materials of research of technology and organization of mounting the drilling-and-filling piles in water-saturated soils are presented.
O. S. Raspopov
On the basis of a linear graph theory, a method of initial parameters and associated matrices the universal analytical approach to calculation of free and forced vibrations of rod constructions is offered. A formal one-to-one correspondence between the st... see more
O. I. Rubleva
The model of destruction of rocks by explosion in vertical shafts is presented. On its basis the most important parameters of technical-and-economical indices of the drilling-and-blasting technology are calculated.
Yu. L. Savin,O. P. Prykhodko,L. S. Savin
In the article the studies devoted to a physical-chemical approach on treatment of wastes of titanium tetrachloride production are described. An innovation scheme providing the wasteless titanium production is proposed.
S. H. Stradanchenko,O. Yu. Prokopov,M. S. Pleshko
Disadvantages of the combined chart of building vertical shafts are considered. New solutions in planning of shafts are offered.
O. O. Tarnopolskyi,M. M. Rotmistrovskyi,M. I. Kazakevych
The results of more than 30-year monitoring and investigations of the real work state of exceptional suspended bridge steel structures made in 1978 are presented in the paper. The major problems and difficulties discovered in the process of the structure ... see more
O. L. Tyutkin
In the article the theoretical bases of determination of the stressed-and-strained state of clay massif from positions of the theory of viscous-elastic-plastic medium are presented.
V. S. Shokaev
The improved variant of Pisarenko-Lebedev criterion for estimation of a stress limit state for materials of building structures is presented. It has been obtained with taking into account the maximal residual tensile stresses acting in a localized zone.
E. S?hperfekhter,S. V. Borshhevskyi
The procedure, technology and technique of erection of concrete timbering by the spill-concrete method are developed for conditions of mines in Germany.
O. I. Tymoshkin
The problem of confidence testing applying to the regular iterative circuits is considered. Total number of such circuits from one class is estimated.
M. P. Bozhko,O. O. Mazurenko
A solution of the task of evaluation of the wagon-hours economy of wagons demurrage at a marshalling yard when making up the particular two-unit train compared to making up the one-unit trains is proposed. A formula for determination of the reduction of w... see more
O. O. Bosov,H. M. Kodola
An algorithm for determination of integer solution of the task of vector optimization for convex functions is offered.
O. O. Yerofeev
Directions of optimization of train formation system are considered. The parameters describing transit traffic at statement of a problem of increase of range of purposes are established. Problems of increase of transit traffic for a station level are allo... see more
V. M. Zhuravlev,O. Ye. Arhypov,I. V. Zhukovyskyi
The analysis of informational parameters of modulation of the super-low-frequency speech signal components (kinemas) for whisper speech is realized. It is proved experimentally that in the equiarticulation bands the maximum index of angle modulation that ... see more
O. P. Ivanov
The improved computation model for traction modes which takes into account the cost of both active and reactive energy in the conditions of application of variable tariffs for payment of electric power is developed.
M. M. Kolos
Belarusis one of the largest manufacturers of potash fertilizers. For “Belaruskaliy”, as for the majority of large industrial enterprises, the main manufacturing rhythmicity depends on the timely transport services. An urgent problem of providing of trans... see more
D. O. Ostapets,V. Lapin
The identification / authentication subsystem architecture of information systems is considered; the analysis of their demerits is done. Advisability of using the onetime passwords generation systems is shown. The software complex of onetime passwords gen... see more
V. I. Prykhodko,O. O. Bosov,S. V. Myamlin
In the article the substantiation of existence of causconsequence relation between different elements of railway vehicles is presented. The probability assessment of mutual relation between technical conditions of separate elements is also presented.
Yu. I. Khmarskyi
A structure and principle of construction of microprocessor circuit of local railway automation is examined on relay-and-contact principle, which realize the three-level filtration of errors providing the highest protection of the systems of station autom... see more
I. O. Vakulenko
The spheroidization and coalescence of the carbon steel cementite depend on formation of new boundary surfaces and displacement of existing ones.
I. O. Vakulenko,M. A. Gryshchenko,O. M. Perkov
For a railway axle in dependence on stages of crack growth the regular changes of structure of destruction surface during the fatigue tests are presented.
I. O. Vakulenko,O. M. Perkov,V. H. Anofriev,V. S. Krot
The destruction occurrence in a railroad wheel is caused by formation of the high local stresses produced by the inhomogeneous elastic-plastic deformation when the cyclic temperature change takes place during and after braking using brake shoes.
?. M. Meshcheriakova,M. O. Kuzin
A method of structure simulation was used to investigate the influence of the hard phase quantity on parameters of the wear resistance of antifriction alloy B16. A method of optimization of linear intensity of wear depending on the quantitative correlatio... see more
V. Ye. Vlasiuk
The paper is devoted to theoretical and methodic problems of research of factors of influence of the state regulation of the processes of incomes distribution. The efficiency of state regulation of redistribution of incomes is analyzed.
V. V. Kompaniets
In the article the research of category «human capital» is conducted: the difference in approaches to interpretation of human capital is determined; the features of human capital are generalized and systematized; the process of its reproduction is explore... see more
I. P. Korzhenevych,M. B. Kurhan,Yu. S. Barash
An influence of the increase of speed of train movement on the expenditures related to wear of rail infrastructure is considered.