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2021 ¹4 | |
Main subjects
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AbstractsS.N. Korzhin, O.I. Mironenko, V.M. Melanin, S.V. Bespal'ko
The authors consider the deflected mode of the wheel during the freight car wobbling. Modelling a stress-strain state this mode is characterized by a change in the point of application of the rail reaction and the possible appearance of a lateral component of the rail reaction when the wheel flange contacts the rail. The results show a strong effect of the car's influence on the deflected mode of the wheel.
Yu.V. Vinogradov, D.G. Evseev, A.V. Korobkin
The authors compare the various research methods of the screen medium when moving a high-speed amphibian, and based on the analysis, the most rational method of measuring the sound speed in the medium and the attenuation of the sound signal is selected using a modular screen medium meter with a radio channel included in the on-board measuring system.
R.V. Guchinsky
The author considers the possibility of frequency increasing of natural bending vibrations of the car body of the city electric train due to the compliance of the attachment of the under-car and roof equipment. It is shown that the effective frequency of vertical oscillations of the equipment is less than the frequency of car body vibrations. It is obtained that the optimum frequency for the equipment can be determined using an amplitude ratio at two frequencies of the natural bending car body vibrations.
A.V. Gorelik, A.N. Malykh, A.V. Orlov
The authors propose a mathematical model which allows determining the maintenance periodicity of railway automation and telemechanics systems according to the maximum test of the availability factor for the 1 and 2 failure categories.
A.P. Baturin, N.V. Bessonova, A.A. Kravchenko
The article considers the issues related to the increase of processing capacity of the hump yard. Calculations were carried out on the example of the Moskovka station of the West Siberian Railway. The authors answer the questions related to the hump yard operation with the cars unauthorized for splitting out. In sum, a rational option for the hump yard operation is proposed.
A.A. Golovina, V.V. Zaslonov
The authors consider the problems of formation and development of uncrewed shipping as a promising way. The article describes the methods that can be adapted into the system of complex creation and, as a result, achieve the most effective result with open engineering data for a qualitative process of formation and operation. The key role of the legal support of processes and the need for its development and adaptation is indicated.
E.A. Mamaev, V.N. Zubkov, E.A. Chebotareva
Using the example of the North Caucasus Railway, the article reveals the tasks of diversifying transport services in the field of dispatching and operation of the transportation process, taking into account the development of the Unified Catalog of Services and the Digital Transformation of Railways.
S.A. Morenko, K.S. Morenko
Facilities of various infrastructures need to be supplied with process water. The use of frequency drives to control pumps is gaining great popularity. The study examined the market offers and scientific developments. It turned out that the centrifugal pump control system makes it possible to ensure a high-quality water supply to small facilities.
P.V. Savchenko, K.V. Menaker, N.V. Romanov
The authors consider the structure and composition of the rail circuit equipment when using a cyclic power supply with the signal current. The article shows the purpose and interaction of the branched rail circuit elements and gives an example of its functioning algorithm.
A.S. Kurenkov, D.I. Bodrikov, E.M. Lytkina, V.P. Smirnov
The article gives the research results of the reliability of asynchronous auxiliary machines of two fleets of AC electric locomotives operated for a long time and modern under almost equal temperature conditions. Both fleets of AC electric locomotives have been operated in freight traffic for more than ten years after manufacture.
V.E. Konstantinov, F.E. Sharykin, Yu.M. Egorov, E.N. Pirogov, A.A. Moikin, E.V. Drabkina
The article presents the experimental research results of microwave technology application for additive package preparation for the production of lubricating oils. It is shown that exposure to microwave radiation makes it possible to reduce energy costs, reduce the duration and reduce the temperature of package preparation, increasing the process efficiency.
K.A. Sergeev, O.Yu. Krivich, I.K. Sergeev
In the article, the authors consider the issues of car repair technological process modelling when using decomposition. This method is a convenient technique for prearranging aggregate units such as a car or a particular assembly.
V.A. Bugreev, A.P. Chekhov, P.A. Chekhov, N.A. Borisova
The authors consider the issues allowing to use of information technologies as the basis of quality management systems in designing and manufacturing electrical and radio-electronic products.
D.V. Koryagin
The author considers the possibility of RFID-technology introducing in the railway transport operation as one of the railway digitalization of aspects. The article describes the general principle of this technology and analyzes the positive and negative aspects of this technology implementation.
N.A. Osintsev, A.N. Rakhmangulov
The article presents the methodology for assessing logistic flows indicators using the DEMATEL multi-criterion decision-making method. The system of parameters and indicators of logistic flows, DEMATEL methodology description, the calculated example of application of the methodology for assessing logistic flows in green supply chains are presented.
V.V. Samoilov
The performance analysis of various dust suppressors was carried out, and the most effective preparation for solving the issue of dust suppression was established.
O.S. Sachkova, E.A. Trifonova
The article considers the issues of modern technical equipment of carriages for transportation of convicts and detainees, as well as the conditions for their placement. The authors pay particular attention to the safety of conductors and convoy personnel accompanying the special continent.
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