55 articles in this issue
B. M. Bondarenko
A method of mechanical and electric parameters control of electromagnetic relays without removal of protective casing is expounded in the article. Control of diagnostic signals obtained by three informative channels: electric, optical and acoustic has bee... see more
V. V. Malovichko,V. I. Havryliuk
Analysis of main exploitation .factors which are necessary for rational choosing of the parameters and developing control and diagnostic algorithm for electric centralization devices are provided.
V. I. Parfenov,O. P. Razghonov,M. O. Kovryhin
The paper provides analysis of electric and mechanical defects of railway switching points. It has been establsished that mechanical defects cause failure of each sixth switching point at a station and each second at a marshalling hump during a year. Ways... see more
D. S. Biluhin
The article describes main types of d.c. generators of controlling circuits of electric rolling stock, provides analysis of voltage regulators and substantiates the need of improvement of voltage generators used in d.c. electric rolling stock.
N. H. Visin,I. Yu. Afanasiev
The article briefly expounds the upgrading of ? functional chart of automatic control system of recuperative braking for DC electric locomotives with power supply of excitation windings coming from a static activator.
V. O. Dzenzerskyi,O. O. Buriak,S. O. Zeldina
An energy-modeling technique for studying theoretical possibilities of stabilization of electrodynamic levitation systems has been presented. Based on the generally accepted mathematical assumptions, the effect of selfstabilization of vertical oscillation... see more
O. O. Matusevych
The article offers organizational, technical and program measures, the application of which is necessary for increasing reliability of the equipment and protecting the information of informational & controlling tele-mechanical complexes of tractive power ... see more
O. M. Poliakh
Research of carrying out of metal on the frequency of own fluctuations of ferro-concrete supports of the catenary. Dependencies, charts and nomograms have been received.
O. I. Sablin
Two ways of determining the spectral structure of random functions of the traction current and voltage on electric rolling stock current collectors are considered in the article. As an example, interharmonics of consumed current and voltage on the current... see more
D. V. Ustymenko
General structure of a microcontroller has been presented; the basic requirements to it and its peripheral modules have been formulated in case of their use in the systems of automated control of rolling stock. An analysis has been executed and a perspect... see more
I. P. Korzhenevych
The article offers a mathematical model of the plan of existing railway track with higher accuracy as compared to the traditional one.
V. V. Artemchuk,O. O. Bosov
Theoretical bases of structural modelling the electrolit processes of a covering by iron are offered.
H. M. Kodola
The problem of vector optimization of demand distribution for passenger transportations between stations with the new approach to transformation of restrictions is considered.
M. O. Loshkarev
The proof of algebraic solution of the «Great theorem of Ferm» has been presented.
V. V. Skalozub,O. V. Vietrova
In the article planning problems which use linear programming models with fuzzy coefficients and strict constraints are considered. Properties of solutions of such problems are defined and possible approaches to solving these problems are proposed. Also t... see more
Yu. Ya. Vodianikov,S. V. Kukin,K. L. Zhykhartsev
The authors have constructed nomographs of dependence of the gear ratio of a lever-type braking gear on the tare of passenger and freight cars according to the calculated limit coefficient of wheel/rail clutch. It has been shown that for passenger cars wi... see more
A. V. Donchenko
According to decision of the Cabinet of Ministers of Ukraine, a project of the comprehensive program of updating the railway rolling stock of Ukraine for the years 2006–2010 has been developed. This program stipulates development and introduction into com... see more
A. V. Donchenko,L. S. Olhard,S. V. Bondariev,L. H. Volkov
The article describes methods of defining the service life and residual resource of the rolling stock running gears on the basis of bench test of a small number of spare parts with the various service life, developed by State Research Institute of Car Bui... see more
N. I. Lukhanin,H. I. Muzykina,P. V. Beh
The article gives a brief analysis to the state of transport services market in Ukraine and proposes measures of its improvement.
O. O. Matviienko
The article describes a method of renewing screw-thread connection of parts of the journal-box car unit with the use of method of repair sizes, when the more valuable part (the axle) is renewed by mechanical treatment, while the adjoining part (butt end n... see more
P. Ye. Mykhalichenko
The articie describes results of operational tests of the joints with guaranteed tension of the axle-box of rail rolling stock, the inside surface of inner racers of which was restored by electrolytic galvanizing on pulse-reverse currents operation. A com... see more
Yu. O. Panin,V. S. Kosov,O. V. Tryfonov
The results of practical application of the technology of combined rails lubrication are presented in the article.
O. L. Redin
Formalized solution of optimizing the devices of compressed air drying for railway rolling stock has been offered with the use of mathematical model of operating the system «compressor unit – compressed air purification and drying devices – main reservoir... see more
M. V. Rohov
The dependence of intervals on the separating switches from cuts braking modes is explored. There were found out the circumstances under which the shortest interval reaches its maximum and this technique is presented.
V. I. Senko,E. P. Hurskyi
The assessment of inventory park of cargo wagons as to their technical conditions and age characteristics are done, main ways for their modernization are stated, the problem of definitions of the necessary park is discussed.
V. I. Senko,I. F. Pastukhov,M. I. Pastukhov
The article desribes the existing and new methods of assessing residual resource of cast parts of the freight car bogies. The existing method is based on obtaining fatigue characteristics of the parts by way of performing field tests for endurance. It has... see more
S. D. Sychev
The problems of the measuring complexes making on PC basis have been viewed, and results of software development for the implementation of the measurements process, as well as for mathematical analysis of the obtained data have been present in the article... see more
H. O. Fediaieva
The computer modeling method and results of dynamical modes in asynchronous traction drive on perspective trunk diesel locomotives with voltage inverters by using DAT305 and DTA470 traction engines are present
S. V. Shmakov
A method of determining levels of transport noise in the passenger sections of a railway car is offered, which will provide the necessary comfort level on noise. It is suggested to conduct classification of passenger sections of a car depending on the noi... see more
H. H. Basov,V. I. Kashuba,I. Yu. Plotnikov
The africle represents the results of TEP150 diesel locomotive testing in different braking modes. Dependencies of actual force of the shoe prossing upon the wheelset bandage on the pressure in the braking cylinder have been received.
O. P. Boldyrev,O. M. Hurov,E. O. Fatkov
The efficiency of using the new prospective elastomeric absorbing devices (P?KE-110, EPA-120), the polymeric absorbing device P??P-110 and the hydro-polymeric device GP-120? for reducing longitudinal loading of a car in the operation conditions has been s... see more
V. L. Gorobets
The methods of reproduction during realization of vibrating tests of vibrations perceived by complex bearing designs of the rolling-stock cars in the letter are considered.
V. O. Poliakov,M. M. Khachapuridze
A high-speed train has been examined. Its vehicles have electrodynamic suspension and track direction and also a synchronous linear traction. Models of natural and desirable controlled movements of such train have been constructed. The required controllin... see more
V. I. Prykhodko
Description of the mathematical model of wheel/rail impact interaction has been given in this paper. In this, the impact action can be regarded both as elastic and viscous.
M. O. Radchenko,T. I. Kuznetsova,O. V. Zvonareva
Oscillations and stability of levitation-type movement of different constructive options of three articulated electro-dynamic vehicles on the straight and curved sections of the track structure have been investigated. The principal system parameters corre... see more
P. O. Donchenko,D. V. Hretskyi,V. M. Konoval
The article considers application of the method of erecting pile foundation with antifriction coverage in waterrepellant sprinkling. It has been noted that in application of the sprinkling protective screen from water-repellant soil is being formed for pr... see more
V. V. Hrynev,V. D. Hrynev,V. I. Atrakhymovych
Features of destruction of the compressed stone designs have been specified. The influence of the bricks bandaging methods and their stacking in horizontal rows on durability of the laying has been established. A technique of assessment and selection of r... see more
H. S. Zhelezniak,K. I. Soldatov,R. S. Zhelezniak
In work on the example of three-flight irregular beam on resilient supports influence of the once-personal on inflexibility resilient supports is probed on a regular beam, and influence of different stiffness of resilient supports (identical between itsel... see more
L. B. Kravtsyv,E. V. Cheremysina
The procedure of a limit fire-strength of the loaded steel-concrete beams. Concrete is submitted by the treephase environment: a firm bearing material (skeleton); set of liquid inclusions in interstices; gas in interstices. The temperature fields in secti... see more
O. H. Kriuk,K. I. Soldatov
The article provides calculation by the finite elements method of frequencies of own free fluctuations of the metal arch bridge over Staryi Dnepr river in the city of Zaporozhye, and that of the experimental model (an arch with the traffic on top). The ca... see more
M. I. Netesa
The article deals with the tasks of efficient use of fillers and reusable industrial materials in the concretes with strength less than 20 MPa, the solution of which provides savings of cement consumption.
O. M. Pshinko,A. M. Zinkevych,T. I. Afanasieva,M. V. Savytskyi
The mechanism of concrete mix compaction by vacuum compaction and vibro-vacuumizing is considered. The major factors essentially influencing this process are distinguished. The mathematical dependences are given. The theoretical findings are verified by e... see more
M. O. Starozhuk,T. M. Pavlenko
B. D. Sukhorukov,M. K. Zhurbenko
The article considers the results of testing an 18m-long sectional span structure, manufactured under project BCK 31-81.
O. P. Filimonov
The concrete plate with external sheet reinforcing is considered. To the given plate preconditions of the theory of «thin plates» are applied. The order of a conclusion and factors of a matrix of rigidity for a rectangular final element of a considered st... see more
Yu. S. Barash,O. O. Karas
The principles of organizational structure of the Department of Passenger Transportations on three stages of Ukrzalizniza’s structural reform were offered with respect to the requirements of the technological process and the antitrust legislation of Ukrai... see more
A. V. Ilman,V. M. Ilman
For modeling economic systems with two conditions, it is offered to use the nonlinear variable dynamic model with two conventional conditions «demand» and «proposal». It is demonstrated that the points of balance, limiting cycles and relaxation variations... see more
O. V. Kalinichenko,L. T. Kalinichenko
The article deals with approaches to the calculation of cost in financial and managerial accounting. The problem of computing the actual cost taken due account of financial reporting is researched here.
S. O. Koretska
General conformities to the law are investigational and the tendencies of backlogs of decline of costs of rationed productions inventories control of material and technical resources are exposed on the enterprises of railway transport.
N. M. Mykhailichenko
Planning processes on enterprise meet with different problems such as problems connected with features of human thought. Adaptation of wins of the strategic thought conception of D. Derner to demands of planning on enterprise let to develop planning metho... see more
R. V. Savchuk
In clause use of a method of qualitative structures for development of the concept of an estimation and choice of the priority design decisions of regional economic development is offered. The basic stages of technology of development and realization of a... see more
I. H. Sokyrynska,L. M. Savchuk
The article considers opportunities of applying the mechanisms of venture funding through the institute of joint investment in conditions of currently effective legislation in Ukraine. Basic kinds and types of the investment funds are defined and their cl... see more
N. V. Khvorostiana
The terms of existence of exploitation are considered in public production and in consciousness of managing subject. The possible ways of overcoming of exploitation are resulted in economic consciousness of society.
I. M. Tsarenkova
Logistical torrents in the system of road economy is consider and distinctive sings which evoke peculiarity his activity and specific quality, be formed. During execution of works on object reveal optimum direction of move road-structure technology, which... see more
O. V. Tsybenko
Intercommunication of investments and the operation volumes of different modes of transport has been considered with the use of economitric analysis instrument – the linear coefficient of correlation.