Science and Transport Progress

7-10

Authors: V. G. Anofriev, A. A. Donev, A. S. Matsuk, S. N. Obernyak

All parts of a car frame and body are subject to a variable degree to corrosion deterioration but their most problematic part is a body bolster. The work on technical diagnosing of cars, operated more than 22 years, has given the chance to gain an impression on the frequency of occurrence of typical malfunctions, their dislocations and the degree of corrosion damages of the frame (car models 12-532 and 12-119) and can be used for forecasting their residual resource and constructive completion.

24-34

Authors: V. V. Myamlin

Different factors, which affect on change of repair work`s time of open cars in depot, that make impossible using of existent method of flow line repair, are researched. The following conclusion are done: car`s repair flow is difficult man-machine-car system with stochastic nature. Organization form of manufacture, which will allow reducing influence of random factors and increase labor productivity are proposed.

43-46

Authors: I. Yu. Khomenko

The possibility of the traction capacity increase of the belt drive TRK is examined. This was done for the purpose of air conditioning system of passenger car with double-generator system energy supplying. Belts XPC (made by the German firm «Continental ContiTech») testing were conducted. The results confirmed the possibility of their usage in order to improve belt drive TRK characteristics.

56-60

Authors: B. Ye. Bodnar, O. B. Ochkasov, O. Ya. Detsyura, D. V. Chernyayev

Methods of nonseparable diagnostics of diesel engine and an analysis of method for diagnostics on uneven angular speed of the crankshaft are reviewed.

64-70

Authors: A. Ya. Kulichenko, A. R. Milyanych

To determine the conditions of destructing isotropic materials under triaxial stress state more criteria are proposed and it is suggested that for determining the conditions of destructing orthotropic materials the distortion energy can be used.

75-80

Authors: D. S. Belukhin

The faultless operation time of modern electronic voltage regulator for low-voltage chains is determined. A comparative analysis with model regulators is executed.

86-91

Authors: T. M. Mishchenko

A new method for parameters identification of devices of the electric traction systems is offered. The numerical calculations of time and current dependences of equivalent parameters of two-terminal networks, which equivalent circuit looks as parallel connection of passive elements, are presented; the related calculations are executed for the electric locomotives DC3 and 2ЕС5К.

95-100

Authors: A. V. Petrov, O. I. Sablin

The results of studies that compare and analyze the numerical values of some key indicators quality electricity in the lines of the external power supply system the electric traction DC. As a supplement are additional and fundamental values of energy losses in them.

106-115

Authors: A. A. Bosov, M. B. Kurgan, D. M. Kurgan, S. Y. Baydak

The technique which allows to receive at level of engineering calculations preliminary results of economic efficiency from elimination of restrictions for speed movement of trains is resulted.

124-129

Authors: K. V. Moyseyenko, O. V. Shatunov

Results of an experimental research of influence of length of a direct insert between adjacent switches, laid according to the second scheme, on traffic safety of cars (by a criterion of derailment resistance).

136-141

Authors: E. M. Frishman, M. I. Umanov

In the article an analysis of interrelation of vertical and lateral interaction forces acting in the magnetic suspension system having permanent magnets of rectangular cross section with the constant (throughout the magnet volume) value of magnetization vector is performed. It is found that the increase in the magnetic bend width (for track and vehicle) leads to improving the lateral stability index as well as reducing the elevating power and the magnetic suspension efficiency.

152-156

Authors: S. A. Gryaznova, N. V. Khvorost

Analysis of the emergency operation modes of tunnel ventilation systems used in subways has shown that these modes do not provide the steady gas-air flows in case of fire in the rolling stock and its stop in the tunnel; and there is no methodological support for calculations of stability of gas-air flows in tunnel fires. The existing technology for assessing the stability of ventilation flows applied in coal mines and road tunnels can not account for the peculiarities of fires in subways.

164-169

Authors: V. D. Petrenko, A. M. M. Alkhdour, A. L. Tiut’kin, V. V. Kovalevich

The article presents the results of analysis of the strained-and-stressed state for subgrade during its modernization.

175-180

Authors: U. Z. Shermukhamedov, I. O. Kuznetsova

The analysis of reactionary ability and fractional composition of large fillers for production of ferroconcrete cross ties is carried out in the article.

187-190

Authors: V. A. Gabrinets, E. V. Hristyan, I. V. Tytarenko

The article presents a rationale for the further introduction of heat pump and thermal storage technology in the heating systems at the facilities of railway transport. Shown significant advantages of this technique over existing systems, primarily due to a significant reduction in demand for scarce fuels and its environmental friendliness.

197-202

Authors: V. N. Pakhomovа, T. I. Skaballanovich, D. A. Lyakhov

One of possible variants of association of networks of different technologies is presented with the use of concentrators and switchboards 100VG-аnyLAN at the level of linear enterprises of railway transport of Ukraine. The corresponding simulation model of network is worked out with a switchboard, in basis of which fixed bubble of port of switchboard diagram on the algorithm of transparent bridge and bubble of concentrator and station diagram 100VG-аnyLAN for determination of descriptions of network in priority and non-priority modes of processing of data. It is set that in a time of reaction of network 100VG-anyLAN most influence renders the threshold of expectation of queries in a turn.

212-216

Authors: O. I. Pochechun

The article highlights a problem concerning the ways of evaluation of financial security and its level on the railway transport enterprises. The relevance of this article is caused by this problem. Insufficient attention paid to the problems on the development of evaluation methods in this sphere could result in loss of financial stability and financial independence of the enterprise, which could lead to its bankruptcy. The challenge is to ensure a high level of financial security of railway enterprises.

222-225

Authors: O. Yu. Bereza, O. V. Bereza

This article is devoted to the investigation of phase composition and microstructure of the higher cooled aluminum-germanium alloys. The formation of non-equilibrium germanium solid solutions is shown. The influence of the rate of cooling and the germanium percentage on the phase composition of alloys is shown.

230-233

Authors: I. A. Vakulenko, S. A. Plitchenko, Y. L. Nadegdin

This paper presents experimental data on the effect of mode of friction stir welding of aluminum alloy on the distribution of hardness over the cross section of the weld.

249-253

Authors: N. V. Gritsenko

At present the reform of railway transport of Ukraine is one of important issues in the state. This paper examined trends in the way of reform of rail transport in recent years. The major stages of reform, which were adopted on legislative changes, are considered.

258-260

Authors: Yu. V. Elagin

A world economy ran into the problem of limit nature of practically all types of resources that results lately not only in the slump of the economy growing but also to the origin of global ecological and social problems. One of the most perspective ways of decision of these problems, i.e. the conception of "sustainable development" is considered. However, the economy of Ukraine develops mostly without application of principles of sustainable development and balancing the economic interests with the ecological and social principles. In the article the basic problems, reasons of their origin and fundamental tasks of sustainable development of Ukrainian economy are conditioned.

266-274

Authors: M. I. Mishchenko

The transport infrastructure of railways of the countries of EU-27 in the conditions of functioning new organizational-economic mechanism, and also dynamics of level of competitiveness of a railway transportation as result of reforming of railways of the countries of EU-27, in the conditions of realisation of the European transport legislation is investigated.

282-291

Authors: A. N. Pshin’ko, V. V. Myamlin, S. V. Myamlin

Some particular basics of fundamentally new economic management model based upon "The theory of high efficient national economy" are shown. The model is non-inflationary and anti-crisis. As a matter of fact, the model has clear social purpose but at the same time it includes market relations and private property on production means. The acceptance by national economy of the proposed model in the first several years will allow increasing the GDP by several times.

298-306

Authors: I. P. Sadlovs’ka

In the article an influence of economic, social and other results on formation of effective system of strategic planning of development of transport infrastructure in Ukraine is defined.

311-315

Authors: A. D. Shemet

The article deals with main forms of e-commerce and its place in the digital economy, gives the characteristic of each. An analysis of research scientists on this issue and proposed the general scheme of the relationship of these forms. The structure of the digital economy and e-commerce site is determined by its composition.