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Trudy Rostovskogo gosudarstvennogo universiteta putey soobseniya

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No 3 (2023)
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5-9 50
Abstract

The paper considers the main industrial toxicants released into the air of the working area during production and repair work at railway transport enterprises. A brief description of the physico-chemical properties, toxicodynamics of the considered harmful substances is given.

9-16 38
Abstract

The features of accounting of foreign economic activity are considered, the methodological support of accounting of foreign economic activity and approaches to identifying areas of analytical accounting of foreign economic activity in the field of transport services are improved.

16-32 42
Abstract

Currently, the Russian Railways holding company pays special attention to ensuring safety at railway crossings, their technical condition and equipment, which has a direct impact on ensuring the safe functioning of railway crossings.

Crossings of railway tracks with a highway at the same level are objects of increased danger, which requires not only compliance with the requirements of traffic rules by drivers of vehicles, but also high organization and maintenance of railway crossings, thereby creating conditions for safe passage following and trains and cars. Ensuring safety at railway crossings is carried out by improving their technical condition, innovative techniques and technologies that ensure an increase in the level of traffic safety, conducting, together with the State Inspectorate for Traffic Safety on the Roads of the Department of the Ministry of Internal Affairs, preventive raids at railway crossings with the greatest intensity traffic

The priority task in safe railroad crossings at railroad crossings is not only to ensure the reliable operation of railroad crossing equipment, but also to manage risks, which will reduce the number of hazardous events at railroad crossings.

33-36 56
Abstract

The concepts of noise and its main types are considered, their characteristics are given, and ways to combat noise are proposed.

36-40 48
Abstract

The analysis of the Python programming language, which will be necessary when implementing a chatbot for collecting user data, is carried out. The relevance of the chosen topic is that the Python programming language allows you to develop chatbots in the Telegram messenger in an accessible way. In this regard, the analysis of the Python programming language is currently gaining practical value.

40-45 37
Abstract

The general principles of operation of superconductors, the history of development, modern realities and potential applications of superconductors under normal conditions are considered.

45-51 40
Abstract

Throughout the entire development of the internal combustion engine, it had a rather low efficiency coefficient, therefore, new approaches to energy use are required to improve energy efficiency indicators. One of the ways to solve this problem can be the use of thermogenerators. This method will not only increase the efficiency of the locomotive, but also reduce thermal emissions into the atmosphere due to heat removal.

52-58 33
Abstract

Various types of implementation of the control algorithm for automatic transmissions are considered. A detailed description of the operating principle of an 8-speed automatic transmission with electrohydraulic control 0D5 is presented.

58-63 38
Abstract

An assessment was made of the possibility of creating an automated radar tracking and control system (ASRSC) for railway infrastructure using millimeter-wave LFM radars for remote sensing and radar diagnostics of railway infrastructure facilities, as well as in determining the most effective ways to use the information obtained to improve train safety, optimize maintenance and repair processes, as well as for increasing the efficiency of railway infrastructure operation.

64-67 38
Abstract

The general principles of the synergetic approach to transport, as well as ways to deal with the infrastructural constraints of transport and logistics complexes, are considered.

67-71 42
Abstract

The kinematic scheme of the hydro-mechanical transmission UGP-230 of the diesel assembly ADM-1 is considered.3. The loads affecting the bearing units of the axial gearbox, which have a negative impact on the performance of not only the bearings, but also the entire unit, have been identified. The replacement of tapered roller bearings with bearings with a long service life is proposed.

71-75 48
Abstract

The technical characteristics of the DSU are considered. A model of noise propagation inside a power plant car is performed. Based on the conducted research, the analysis of existing domestic materials that can be used to reduce the impact of structural noise on the floor of the power plant car of the recovery train was carried out.

75-81 37
Abstract

The issues of using direct current electric locomotives with a rheist-concrete control system, as well as the disadvantages of such a system, are considered. The setting of the problem is determined. The structural and principled schemes of the traction drive using the reverse diodes are described. Implemented the spice-model of a power semiconductor diode in the LTspice system. A comparison of the obtained volt-ampere characteristics of the presented model with real datasheet indicators of the selected diode was carried out.

81-93 41
Abstract

TiCrZrNbHf coatings were applied using the vacuum arc spraying method in the presence of nitrogen in the chamber and in its absence. The structure and elemental composition of the coating were analyzed using a scanning electron microscope and an energy dispersive spectrometer, the mechanical properties of the coating were measured using the nanoindentation method. The degree of wear was investigated using a tribometer by the “ball–disc” test method. Based on the conducted studies, the influence of the presence of nitrogen in the chamber during coating was assessed.

93-99 40
Abstract

Currently, many transport organizations (in particular, the main participants in the international transportation market) are forced to change their internal structure and range of services, due to changes in the situation and demand in the transportation market.

The process approach is used to form horizontal links in the company in such a way that departments and their employees working on a single process can perform their tasks without the direct participation of managers. This technique is aimed at achieving an effective result in a short period of time. Independent coordination of activities allows you to focus on the activities of the entire organization, and not just on the results of the work of each department.

The process approach has well-defined principles and rules of application, making it one of the most efficient and accurate applications for both small and large organizations.

99-105 46
Abstract

This article analyzes the quality of electricity in a three-phase supply line for signaling devices at an electrical centralization post on the North Caucasian Railway.

105-110 37
Abstract

The main advantages of digitalization of internal control are considered, new methods of conducting internal control are disclosed. The main risks that may occur in connection with the introduction of digitalization in the internal control system are described.

110-116 45
Abstract

The issues of automating the accounting of wagon property, which contribute to the optimization of the management of the assembly of a rolling unit, have been studied. A mobile application has been developed to automate the processing of information on equipping a passenger wagon with removable soft and hard equipment. The software allows you to combine information on the completion of the wagon at the point of formation and replaces paper inventory logs.

117-123 71
Abstract

New formulations of special solid lubricants for the «wheel–rail» friction system have been developed. The selection of functional additives according to their activation energy was carried out. The results of comparative field tests of optimized formulations of lubricants for the resource of a single application are presented. It is shown that the wear value of the ridges of the wheelset bandages decreases as a result of long–term operational tests of a new formulation of solid lubricating rods “RAPS” with a polyethylene additive.

123-126 42
Abstract

The article discusses the advantages of using technical systems to protect transport infrastructure facilities from illegal entry compared to the use of rapid response teams of transport security units. The principles of operation of the products “Lawn–24” and “Hodograph-Universal” are considered.



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ISSN 1818-5509 (Print)