55 articles in this issue
O. M. Bondarev,D. O. Yahoda,V. M. Skoblenko
In the paper the results of experimental-and-theoretical evaluation of strength indices for central swing bolsters of diesel trains DR1A are presented and the variants of modernization and improvement of the strength indices are recommended.
V. V. Artemchuk
The issues related to renewal of worn-out parts of a rolling stock with the layered coatings are considered in the article. In developing a mathematical model of wearing a multilayer material as an object of rheology certain assumptions, which enable usin... see more
Yu. M. Hermaniuk
The article describes the basic problems of organization of international transit transportations. A statistical analysis of wagon delays at border stations has been done. Also some conclusions on the necessity of developing a mathematical model of pushin... see more
V. V. Myamlin
The advantages of the line form of production organization are shown. The examples of forming the lines in different branches of industry are given. Main characteristics of line production are presented. An important role in the development of new structu... see more
S. V. Myamlin,D. M. Baranovskyi
In the paper the results of experimental research of wear character and value of responsible tribosystem of cylinder-and-piston group and crank-and-conrod mechanism of diesels for the special self-propelled railway rolling stock are presented. It is shown... see more
O. A. Nykyforova,Yu. V. Soloviova
The correlation between character and conditions of dispatchers’ labour is studied. It is determined that existing professional selection methods can not completely estimate the degree of specialist’s emotional stress. The use of physiological and hygieni... see more
O. I. Kharchenko
In the article the theoretical bases of modeling a technology of cargo transportation on the basis of determining the dependence of expenses on cargo transportation time are suggested.
D. S. Bilukhin
A mathematical model for research of the system of automatic voltage control of low-voltage circuits of electric locomotive with the generator power source supply is offered.
H. K. Hetman,S. L. Marikutsa
A number of functions for approximating the universal magnetic curve and its derivatives, their accuracy and conformity to the requirements put forward by the authors have been studied.
Ye. D. Kim,V. H. Sychenko
The article is dealt with the selecting methodology of overvoltage arresters for DC traction line.
M. O. Kostin,P. Ye. Mihalichenko
In the article a new indication of emergency conditions detection for the traction DC power supply system, namely the rate of decreasing the traction substation feeder voltage is suggested. The indication considered allows determining a kind of short circ... see more
V. H. Kuznetsov,O. M. Poliakh
The scientific substantiation of a selection of diagnostic parameter for a new method of diagnostics of ferroconcrete supports of an electric-traction network on the basis of the average information on a support condition is conducted.
A. A. Marenych,N. A. Kostin
The new improved method of determination of the nonlinear function of several random variables-arguments as applied to traction and counteracting characteristics of the rolling stock electromagnetic contactors is proposed. A parameter which has the most s... see more
T. M. Mischenko
The article is a continuation of analysis of mathematical models for AC systems, in which the elements of electric-traction network and switch-on of power transformer in an idling mode are gradually connected. The numerical calculations and analysis of cu... see more
N. V. Rudevich
In the article the influence of inharmonicity of current signals on errors of the measuring transformer of current is considered.
Yu. H. Semenov,Yu. I. Zharkov
The construction principles, structure of optic-electronic system for registration of arcing sliding contact breaks are presented; the methodological bases of using the system for automated detection of steady defects on an electrictraction network are de... see more
D. V. Ustimenko,A. V. Nikitenko
In the article the basic attention is paid to comparison of power losses in drives of pumps with various kinds of control. The resulted material focuses in determination of those units of the drive systems where the application of a frequency control is t... see more
I. O. Bondarenko
The problems of providing the design quality for the substructure of railway track are considered.
I. O. Bondarenko,D. M. Kurgan,O. M. Patlasov,V. Ye. Savluk
The tendencies of application of modern digital technique for carrying out the experimental research of the rolling stock effect on the track are shown. The possibility of determination of the elasticity module of the basis under a rail by results of meas... see more
K. V. Moiseenko
The conditions, which are necessary for full-scale test of a switch on strength, purpose and tasks of tests, requirements to laying, operation and state before and during tests are described; the scheme of installation of devices, the basic requirements t... see more
V. V. Rybkin,V. A. Lysak,O. L. Burdiuzha
In the article the possibility of safe operation of the switch (project KC1002.00.000) in the jointless track affected by thermal forces is under study.
E. V. Anufryeva
The article is dealt with basic statements of the developed technology of recovering the supporting power of transport and hydraulic structures. The proposed pneumatic jet method of repair and recovery of the supporting power of transport and hydraulic st... see more
V. Ye. Volkova,M. S. Oleynik
Industrial pipes are an integral part of the complex structures of enterprises of metallurgical, chemical and other industries from the moment of their advent. Their purpose is to exhaust industrial wastes with residual content of hazardous substances on ... see more
O. L. Herasymova
In the article the issues of setting norms for levels of economic efficiency depending on ratios of variables (prime price, constant and variable costs, estimate cost of works performed) for providing a control of cost and dates of realization of build pr... see more
H. Ye. Huslysta,D. O. Bannikov
The article is devoted to consideration of soil and reinforced concrete physical nonlinearity, structural nonlinearity and genetic nonlinearity at numerical simulation of system «structure–soil massif» by using the structural engineering analysis software... see more
A. V. Krasnyuk,T. V. Ulchenko,A. N. Netesa,K. N. Netesa
AutoCAD 2009 possibilities of the 3D solid-body modeling are described in the article. The optimum design methods for construction drawing tasks are analyzed. The choice of methods for 3D solid-body drawing is proved by samples.
A. P. Prikhodko,Ye. S. Kharchenko
In the article the basic research results of adhesion processes of modified polymeric compositions with the recovered architectural elements of buildings are presented. The processes taking place in the contact area of polymeric solution with the repaired... see more
M. V. Savytskyi,O. H. Zinkevych,A. M. Zinkevych
The dependences of influence of structural features of diaphragms of lightweight steel framing braced wall structures on their stiffness are determined. On the basis of dependences the procedure for estimation of stiffness of a diaphragm of any configurat... see more
M. L. Soroka,L. A. Yaryishkina
The processes and factors associated with the development of emergency emissions of hydrocarbons during their transportation by rail are considered in the article. Basic requirements to sorbents used to eliminate emergency emissions of hydrocarbons on rai... see more
K. V. Honcharov
In the paper the practicability of using the digital signal processing in track receivers of the tone track circuits is shown. On the basis of spectral analysis results of the signal current of the tone track circuits, as well as with taking the acting st... see more
A. P. Razgonov,K. I. Yaschuk
Functioning of the track circuits and automatic block system on a pass section with a steep profile has been investigated. The traction calculations, the thermal operating modes of choke transformers, the operating regimes of track circuits with installin... see more
O. H. Kapitonov
A mathematical model of coulostatic relaxation of the potential for solid metallic electrode was presented. The solution in the case of limiting diffusion current was obtained. On the basis of this model the technique of concentration measurements for hea... see more
V. V. Lahuta
The problem of optimum traction calculations is considered as a problem about optimum distribution of a resource. The dynamic programming solution is based on a step-by-step calculation of set of points of Pareto-optimum values of a criterion function (en... see more
S. L. Litvinenko
In the article the peculiarities of practical implementation of the concept of informatization of national cargo air carriers, based on the use of radiofrequency identification technology in order to improve the service processing of cargoes by direct int... see more
E. S. Ryabov,B. H. Lyubarskiy
In the article a simulation model of traction direct drive on the basis of inductor motor with the axial magnetic flux realized in the visual programming environment Simulink is considered. At creation of the AI? model a method block diagrams is used.
N. Yu. Shramenko
The mathematical formalization of operation process for a terminal complex is proposed and a model taking into account characteristics of a freight terminal and all the possible states of a system is developed.
I. O. Vakulenko,V. H. Anofriev
The issues of using the high-strength low-alloy steels after different thermomechanical treatments for manufacture of railway cars are considered.
I. O. Vakulenko,Yu. L. Nadezhdin
Contrary to the one-sided straining, after compressive predeformation with subsequent tension the shift of appearing the first stress stall to higher values of strains can be observed. The values of compressive predeformation and the strain of first stres... see more
O. A. Kuzin,T. M. Mescheryakova,M. O. Kuzin
The results of study of influence of structure on mechanical properties and behavior of ferrite-perlite steels under the action of contact loads are presented. It is shown that the formation of the widmanstatten pattern has a negative impact on the perfor... see more
A. V. Radkevich,S. O. Yakovlev,I. Ye. Kramar,O. I. Shaptala,M. V. Borenko
The ways of establishing traffic control in the management of maintenance and repair of equipment, which will greatly facilitate the management of mobile repair facilities and improve the efficiency of their use, are considered.
O. L. Skuibida,I. P. Volchok
The influence of increasing the modifier additions on the structure and mechanical properties of the secondary aluminum alloy ??6?2 was researched. The optimal addition of modifier developed was determined.
E. V. Suhovaya,V. A. Syrovatko,Yu. V. Syrovatko
The structure and properties of the composites having Fe-C-B-? binders alloyed with molybdenum and strengthened by the W-C quickly-cooled filler were investigated in this work. The model based on quantum mechanics principles explaining the dependencies of... see more
V. D. Shelyagin,V. Yu. Haskin,A. T. Nikulin,A. V. Siora,A. V. Bernatskiy
The process of laser and laser-plasma methods of surface alloying of steel samples is investigated. It si determined that in the absence of cracks the structural state of the doped layer is characterized by the formation of dispersed phases in their unifo... see more
Yu. S. Barash,O. P. Pinchuk
In the article the new principles of generating the costs of suburban passenger transportation for each specific train, taking into account features of the rolling stock, traffic speed and comfort are developed.
V. V. Bobyl,T. M. Bielikova
In this article we analyze the expediency of the financial control at metallurgical enterprises. The problem factors, the solution of which can result in increasing the operational efficiency of metallurgical enterprises are also defined.
T. M. Hlushenko
The theoretical approaches on adaptation of organization-and-production structure to market conditions are considered. The practical recommendations to enhance the competitiveness of railway transport in the market environment are developed.
H. D. Eitutis
It was established that the initial stage of reorganization is to run diagnostics of the enterprise, under which a decision on development of an algorithm for structural transformations shall be made. Organizational and management analysis is an important... see more
V. O. Zadoya
In the article the basic approaches of improving a management mechanism for passenger suburban railway transportations are considered, and the classification of reformation models for passenger suburban railway transportations depending on scales, degree ... see more
N. F. Zenchuk,A. V. Zaluzhnaya
One of directions of saving the energy and reducing the specific costs of carrying out the transportation work may be raising the maximum permissible speed of trains at the end of «bad» down-grades through improved track maintenance and timely removal of ... see more
I. V. Klimenko
In the article the use of method of T. Demark for construction of the operative forecast of the basic indicators of activity of railway transport enterprises is offered.
D. V. Koliesnikov
The results of scientific research aimed at development of methodology-theoretical mechanisms of building the effective models of vertically-integrated structures are presented. A presence of vertically-integrated structures on natural-monopolistic market... see more
A. A. Pokotilov
In the article the factors and parameters of the investment attractiveness of housing projects are considered, their classification according to the nature of influence is completed.
H. S. Piatyhorets
The order of drafting of calculations on the additional services given to passengers at train stations is considered; a procedure of calculation of the direct charges is offered.
I. P. Sadlovska
Main results of railway transport activities in Ukraine are analyzed in the article. The important role of railway transport in the state economy is defined and the basic directions of its development are formulated.
T. V. Teslenko
The organizational structure of management of railway freight transportations based on product principle is offered that allows functioning of private operator companies and realizing of transportations on competition basis.