51 articles in this issue
L. F. Dolina,O. O. Mishchenko
A technology of cleaning oil-containing waste waters and industrial sewages which contain lubricating and cooling liquids is represented in the article.
V. V. Beliaeva
Some methods of calculating ventilation after indoor emergency discharge of chemical impurities or fire ball burning have been developed. The methods are based on numerical integration of 3D equation of energy and 2D equation of admixture transfer in the ... see more
I. V. Kalashnikov
An effective method to calculate the process of neutralization of soil and underground waters when the neutralizer is supplied to the surface of the soil. The method proposed is based on the numerical model of admixture transfer process. The implicit chan... see more
V. M. Lysniak
A new method to calculate the process to NH3 cloud neutralization which is discharged from a helicopter. The method is based on the numerical model of the process. To simulate the process the 3D gradient model is used. The implicit difference scheme is us... see more
V. V. Hovorukha
The problem of creation of resilient rail fastening is considered for high-speed train services. The article describes the research methods of loading and resiliently-deformed state of resilient terminals and presents the results of investigation of the i... see more
O. O. Kebikov
The conditions of the material on the rolling surface of rails, maintained in the underground conditions, are investigated.
I. P. Korzhenevych,M. H. Renhach,N. O. Loshkarev
The estimation of accuracy of existing methods of rail curves survey is considered and recommendations on its improvement are provided.
M. B. Kurhan,I. P. Korzhenevych,V. V. Arsonov
An analysis has been conducted and the scope of usage has been established of rolling stock with a forced car body tilt.
Yu. I. Osenin,V. P. Voitenko
The paper suggests a railway track diagnostic device adaptable to the conditions of uncontrolled acoustic interferences of man-caused origin propagating in the rail material by means of using the spectral analysis based upon the Fourier transformation, di... see more
I. O. Yelovoi,M. M. Kolos
A methodology and methods of selection of effective delivery systems of potassium fertilizers is considered. Investigation results on determining rational routes dependent on force-majeur circumstances, freight and tariffs rates on different means of tran... see more
V. M. Zhuravlev,I. V. Zhukovytskyi
In clause the algorithm of digital processing of an identification fragment of speech allowing is considered, on the basis of the analysis deviation of carrying frequency of a speech signal submitted as a signal with phase modulation, to increase accuracy... see more
H. V. Kryviakin
A mathematical model has been developed allowing to determine a value of dynamic moment on the shaft of a traction motor in view of oscillations of the body and bogies in the locomotive movement on continuous and isolated irregularities. Numerical values ... see more
V. M. Kuleshov,Yu. V. Dotsenko
The problems of railway operation in conditions of developing market of transport products and services have been considered. A mathematical model of distribution of resources on the testing area for ensuring the traffic service has been provided. A concl... see more
O. V. Lavrukhin
The article examines possibilities of creation on the railway transport of the adequate decision-making support system on the basis of the fundamentals of the fuzzy sets and fuzzy logic theories.
V. I. Moiseienko,V. V. Radchenko
The article considers the issues of modelling train situations at stations and develops a mathematical model of operation of railway automatics devices and movements of trains. The special software has been described, which allows essentially to simplify ... see more
V. V. Artemchuk
For maintenance of the existing rolling-stock in working order it is necessary to carry out quality repairs. One of directions of development of repair manufacture is the development of new technologies of restoration of the worn out details. The article ... see more
H. H. Basov,V. P. Hundar,S. I. Yatsko,O. V. Romanenko
A system of the account, processing and analysis of parameters of operation and serviceability of rolling stock, which is currently under development, is presented in the article.
L. V. Balon,I. O. Yaitskov
The article enlists the results of theoretical and experimental research of brake systems of the command-type locomotives according to the filling time of mainline of the auxiliary brake and the brake cylinders, and makes their comparison. The advantages ... see more
V. I. Bobrovskyi,D. M. Kozachenko,M. V. Rohov
The article provides the research of the characteristics of the permissible scope of braking modes in uncoupling and their relations to the uncoupling parameters of cut and the rollback conditions. The interrelations have been established of the braking m... see more
B. Ye. Bondar,Ya. V. Bolzhelarskyi
A calculation method of the number of shunting single trips for meeting the task volumes of shunting operations at a passenger station is developed. The computation of the single trips numbers is based on the train schedule and technological processes of ... see more
E. I. Halai,P. K. Rudov
The results of braking test of passenger trains equipped with cast iron and composite braking shoes have been provided; the causes of the braking efficiency decline have been stated; recommendations on improvement of the standards and increase of the trai... see more
S. V. Myamlin,L. V. Dubynets,V. T. Vyslohuzov,O. H. Duhanov
An important stage of development and manufacture of the products and parts for rolling stock is a quality expertise of draft specifications at a stage of their development. The article enlists the component parts of the specifications project, the estima... see more
A. I. Kuzmenko
This article deals with difficulties related to further integration of the transport systems of Ukraine into the European community. Priority directions of further research of rail cross-border points operation have been proposed, with the ain of cutting ... see more
M. I. Kapitsa,V. V. Lahuta
The article considers the task of determining the rational timing for renewal of the excitation spools insulation in tractive electric motors on the basis of prognosticating the reliability, stochastic methods being used as the reference point.
M. I. Malkov,O. M. Havrysh,M. F. Fesenko,V. V. Sytyk,S. O. Yakovlev
The article considers directions of technical development and provision of the State Special Transport Service with the new, modern technical equipment and also the directions of solving the task of formation of building machinery stock by the use of the ... see more
Yu. V. Popov
The article considers the ways of changing the supply of the axial fans in the heat-carrier cooling systems in the engines of diesel locomotives. A new way of the supply regulation has been provided, a description of its work from the point of view of aut... see more
S. V. Miamlin,V. M. Bubnov,D. T. Lavrenko
An analysis of main engineering designs for constructions of tank cars for transportation of light oil products is presented in the paper. A special attention is paid to the connection unit of boiler and wagon frame.
Yu. Ya. Vodiannikov,L. S. Olhard,O. V. Hrechko
The article presents the results of study of the interaction processes of a brake shoe and a wagon on the level ground and a 30 ‰ bias during braking operation. The static characteristics of the axial forces, acting upon the brake shoe, as well as their m... see more
V. O. Dzenzerskyi,S. V. Burylov,O. O. Buriak,V. Yu. Skosar,Ye. L. Vyduta,Yu. I. Skosar,Ye. V. Anikeiev
A device for formation of lead-acid accumulators has been developed, which employs a forced controlled circulation of the electrolyte. The device is aimed at equalizing the technical characteristics of the accumulators. It helps extend the lifetime of the... see more
V. O. Dzenzerskyi,E. O. Zeldina,I. I. Finahina
The joint vertical and lateral oscillations of a moving superconductive magnet in the electrodynamic levitation system with the discrete track structure have been researched. There has also been studied the effect of magnet flow separation into oscillatio... see more
O. M. Zaitsev,V. E. Voskoboinik,S. V. Komarov,O. S. Voroshylov
The article has investigated a mathematical model of an electric drive with linear synchronous motor in transition regimes. Results of the modelling have been presented. The model allows to investigate electromechanical and thermal processes in the linear... see more
V. M. Starchenko
The theory and design procedure of elastic characteristics and technical constants of frictional carbon – carbon composite materials, spatially reinforced by direct small diameter rods, have been presented. An analysis of the calculations output and compa... see more
V. F. Ushkalov,T. F. Mokryi,I. Yu. Malysheva,I. O. Mashchenko,D. I. Hrytsenko
Based on the results of theoretical and experimental studies, the effect of change of standard wheels by wheels with ITM-73 profile on dynamic performance of freight wagons with 18-100 trucks is evaluated.
V. P. Afanasiev,H. I. Sementsev
In terms of stochastic functions conditions of serviceability of the bottom zone of a wall of steel tanks for long-term storage of mineral oil are formulated. The model of operational reliability of this constructive element is received.
H. D. Belyaev
Software is developed to research into vibrations and the stressed-deformed state of the carrying elements of bridge structures at various speeds of a rail vehicle movement.
V. O. Buhaiev,D. V. Horydko
The article presents the results of experimental and theoretical research on the technologies of repair and reconstruction works at the special purpose structures. A possibility has been shown of increasing operational performance of the renovated reinfor... see more
D. V. Horetskyi
The article enlists the reasons of occurrence of environmental problems in the underground space of big cities, describes the origins of the negative influence of bio-corrosion in conditions of weak soils, gives characteristics of the influence of a negat... see more
B. I. Klochko
The article proposes new approach to estimation of parameters of construction projects realization, taking into account the factors of quality and scope of resources, organizational & technological flowsheets, the parameters of time. Such an approach allo... see more
O. M. Pshinko,D. V. Rudenko,Yu. V. Punahina
The article presents the results of experimental and theoretical research of the repair & restoration technologies at the special purpose structures. Experimental data have been provided for determining the strength of concrete, based on activated binder ... see more
A. V. Radkevych,V. F. Khudenko
In organization of renewal of even some construction objects, there may be great difficulties with distribution of resources. This study aims at a search of optimal options of distribution of labours resources.
M. M. Rudenko,V. V. Punahin,N. I. Beloshytska,M. Kh. Sydikov
The article enlists the main fundamentals of theoretical substantiation of physical and chemical interactions in the activated cement system. It has been shown that the course of the hydration and structure-forming processes of an activated cement system ... see more
L. S. Savin,Yu. L. Savyn,O. P. Prykhodko
The components of ecological concrete manufacture technologies in the production of steel-concrete products have been enlisted. Classification of ecological additives has been provided and the technology of ecological concrete has been described.
K. I. Soldatov,A. H. Kriuk,V. I. Borshchov,V. I. Madatov,D. K. Zaporozhets
The article desribes the method and elists the results of static and dynamic tests of the metal arch bridge over the river Dnepr in the city of Zaporozhye that were executed by the Laboratory of Bridge Dynamics of Dnepropetrovsk Institute of Railway Trans... see more
V. P. Tarasenko
The operational features of prestressed resilient elastic threads under the influence of lateral point forces have been estimated.
V. O. Momot
The article provides analysis of the issues of using monolithic concrete in hydro-technical construction, selects the main factors, influencing the characteristics of concrete mixtures for underwater concreting and determines the basic ways of further res... see more
I. O. Vakulenko
Investigations of the structure of cold rolling 20% low carbon steel showed the existence of a considerable volume of ferrite that have periodic dislocation structures, similar to dislocation cells. After four alternating bending cycles, there have ben no... see more
V. O. Zadoia
At the present stage of reforming the railway transport of Ukraine there are a few organizational and legal options proposed. Among them there are three essentially different approaches of forming the industry’s organizational structure that can be single... see more
O. A. Shpak
The article is devoted to estimation of influence of separate factors on the summarizing index of operational efficiency of railway and suggestion of measures for the improvement of operating activities.
T. V. Teslenko
Possible variations of freignt operation companies have been examined on the basis of the proposed classification.
L. A. Shylo,V. P. Kostiv
A health insurance program has been proposed. The mentioned program is the first step in reforming the health care system financing on the railway transport of Ukraine.
O. H. Kharchuk
Preservation of the potential of Ukraine’s railway system and its role as the basic socio-economic system of Ukraine, consolidation of its positions on the market of transport services and integration into the Paneuropean transport system will be possible... see more