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An approach to the evaluation the actual energy savings achieved when implementing service contracts energy, based on the development of mathematical models of power consumption, taking into account the impact of production and climatic factors. An example of the calculation of the ac-tual efficiency of introduction of energy-saving devices at the Sverdlovsk railway is presented

The article deals with the modeling of the electric rolling stock and traction power supply system with the aim of solving the problem of reducing the electric power consumption for the traction of trains in the conditions of changing the schedule of freight trains. Simulation modeling is performed for the conditions of changing the mass of the train and the load on the axis. The description of the results obtained is based on regression models, the order of application of models in practice is given.

In research consider a methodology the remaining life assessment of rail with fatigue crack in lower flange. Obtain the stress intensity factor equations for crack size and kind of stress: bending stress, thermal and residual stress. Make up an fatigue strength analysis of rail P65 and under different conditions of loading and remaining life calculation of damaged rail when given conditions of loading. Submit a assessment evaluation rail reinforcement in cyclic crack growth rate.

This article presents promising and widely used in transport construction methods of earth bed reinforcement with the use of geotextile as a reinforcing and separating layer. It was suggested to lay down geotextile coverings manually in the zones of rail joints of an equalizing span of a continuous-flow track by 6-10 sleepers in each side of the joint, in all, 12-20 sleepers where high-speed and high-speed passenger traffic is expected. Basic technical requirements and restrictions on geometric dimensions for geotextile when reinforcing the main track bed are given. The technology of manual laying of reinforcing geotextiles when a small section of the railway track needs reinforcement during routine maintenance and repair of the railway track is given. The sequence of basic manual laying of geotextile coverings in the technological "windows" is described. Experimentally conducted work on the device coatings of geotextile manually in the areas of rail joints equalizing span of permanent way for 6 sleepers on each side of the junction in the railway sections of the Tashkent railway station (PCH-2). A design for reinforcement of the main ground in the areas of rail joints has been proposed. The basic requirements to quality control of construction works in structures with the use of a layer of geotextile materials are given.

The paper discusses the main limiting factors limiting the volume of transportation of high-volume freight trains. Designated approaches to solving the problems presented by the use of compensating devices. The paper presents the method of selecting installation sites and the power of compensating devices in the traction network, taking into account the growth in traffic volumes, allowing to evaluate the positive effect of the installation of compensating devices on the prospect of increasing traffic volumes. Determination of perspective power consumption is proposed to carry out using power consumption forecasting. To assess the effect of the installation of compensating devices in the traction network, three criteria have been proposed: unloading traction transformers, increasing the voltage level at the consumer, and unloading the power transmission lines.

Coal is one of the main sources of energy of the 21st century. New plasma-energy technologies are being developed to improve the efficiency of coal combustion. Today, pulverized coal CHP plants worldwide generate more than 50% of electric and thermal energy, the share of coal in the fuel balance of the CHP is growing. At the same time, the quality of coal is reduced. Traditional methods of reducing fuel oil consumption at thermal power plants (increasing the dispersion of the grinding dust, high preheating of the air mixture and secondary air, etc.) used to improve fuel ignition and burning stabilization, have exhausted themselves, therefore a radical increase in fuel efficiency can only be associated with the development and development of completely new technologies. Plasma technology seems to be the most promising among the alternative technologies available to solve the above problems. This technology provides a significant increase in economic efficiency and environmental performance of power plants operating on solid fuel.

Modern requirements for the organization of the transportation process depend on technological and infrastructural aspects. Traditional approaches to regulating car flows, including using methods to minimize empty runs of rolling stock, lead to the loss of profitable options for JSC Russian Railways to interact with customers in terms of organizing exports and imports with subsequent sale of these goods (products) in Russia. The technology of transporting coal in «Open Top» containers with back loading with imported cargo has advantages arising from foreign and domestic experience in implementing such transportation. This article focuses on the economic aspects of the technology under consideration, including reflecting the specifics and prospects for the development of container transportation of coal. A comparative analysis of economic indicators for several options for transporting coal is performed. For customers of railway transport and JSC Russian Railways, the feasibility of organizing freight transportation in «Open Top» containers with the formation of closed routes with back loading with imported cargo to an intermediate station is substantiated. It is noted that the savings of the closed ring route of coal and anhydrous calcium chloride in containers reach from 30% to 65% compared to the use of universal gondola cars. Given the current conditions of congestion of the railway infrastructure, the use of «Open Top» containers for the transportation of various goods is a key advantage of ring routes. This is important to consider when developing export-import relations with friendly countries.

The article is devoted to the problem of elimination of thermomechanical damage on the surface of rolling wheel pairs of cars, which arising from the use of brake shoes to reduce their speed. A new design of the brake shoe equipped with electromagnets, which provides braking without jamming the wheel pair. Article contains calculation of the braking force and the provide slowdown .

The national program of socio-economic development of the Far East in the period to 2024 and a term until 2035 [1], approved September 24, 2020, provides for the modernization of the transport infrastructure of the Eastern site of "Russian Railways", in 2021 carrying capacity which should reach 144 million tons and by 2025, capacity will be increased to 182 million tons. In addition, the program provides for the implementation of measures to increase production capacity of the far Eastern seaports and development activities in the Arctic region and the Northern sea route as competitive Intercontinental transport corridor for cargo between the ports of the Asia-Pacific region and the European Union. to ensure the passage of promising volumes of cargo traffic, it is necessary to resolve issues that hinder the effective functioning of the far eastern transport hubs. Currently, the railway infrastructure of transport hubs has a maximum load. In 2018, the unloading of cars that arrived as part of block trains at the port stations of the Far Eastern Railway amounted to 994.46 thousand cars, while loading amounted to 426.88 thousand cars. Such a disparity in the volume of loading and unloading of goods leads to the accumulation of a large number of empty rolling stock at the port stations of the Eastern Polygon of railways, which must be sent for loading at the stations of the western direction. the released rolling stock occupies the tracks of the station and the port, thereby making it difficult to perform shunting work and limiting the station's ability to receive loaded cars. The purpose of this study is to develop proposals for the organization of work with empty car traffic at the eastern railway landfill. This requires to solve the following tasks: to analyze the workloads of the stations and the far Eastern sea ports interaction technology to all the traders in the transportation process, to develop actions on the organization of work of the regional logistics center with the empty wagons, to determine the economic efficiency of the activities. An important areas of work of the regional logistics center of the Far Eastern Railway is to improve the technology of working with the released rolling stock and the organization of a transport and logistics system for the accelerated return of empty gondola cars to the loading station. This paper presents an organizational scheme of interaction between rolling stock operators and management units of Russian Railways to regulate the movement of empty rolling stock. To improve the efficiency of operating the car fleet, it is necessary to organize an operational exchange of information between various owners of rolling stock, the regional logistics center of the Eastern polygon and the unloading station, which should consolidate the car traffic to form a special empty route. the conclusion of the study is to determine the potential economic efficiency of reducing the turnover of block train cars in the direction of «nakhodka-vostochnaya station-loading stations of the east siberian, west siberian and krasnoyarsk railways».

The actual process of interaction of pantograph with catenary associated with random processes. The main factors affecting the pantograph are vibrations of the rolling stock, aerodynamic, the instability of the dynamic properties of the pantograph and overhead catenary, etc. In view of the plurality of influencing the current collection of factors theoretically investigate the dynamical system "Pantograph - catenary" in full It is a complex task. A more rational to theoretical studies and sufficient for practical use is to consider deterministic processes. In the numerical simulation of the current collectors are the most common types of the following design schemes (models): lumped mass pantograph model; pantograph multibody schematics; pantograph multibody schematics in CAD-systems, which describe in detail the geometric dimensions and physical properties of each element of the pantograph. In the design of the pantographs is an integral part of the calculation of interaction of pantograph with contact suspension. Contact suspension counted in the calculations in the form of a concentrated mass interacting with the pantograph skid or a spatial system composed of resilient elements of finite length (catenary with distributed parameters). The second type of catenary model is used in the interaction with the first two types of models considered by the current collectors. Based on the features of each of the presented kinds of models, present the technique of the pantograph model selection, depending on the purpose of the simulation.

The article describes the design features of the current collection system of the Moscow monorail and revealed its shortcomings, limiting the possibility of increasing the speed of electric rolling stock. The features of a promising new generation of monorail transport system with increasing speed (up to 150 km / h), the message "city - the airport," which is proposed to use the contact current collection system with flat working surfaces of the current collector and the current lead. The aim of the work was to develop measures and technical solutions for improving the current collectors to provide reliable, cost-effective and environmentally-friendly electric power transmission on board the electric rolling monorail transport systems. The proposed technical solutions have allowed to increase the average life of the contact elements of the current collectors of electric rolling on the active sites of the Moscow monorail from 30 days to 5 months. A preliminary design and manufactured model sample collector rolling device for the new generation of monorail transport system with increased speed. A basic model of the pantograph, which allows to unify all the major components and spare parts for the current collectors of options for different speeds, load current, and other operating conditions and choose the appropriate model, taking into account technical and economic feasibility. The results can be used for the improvement of existing and development of new designs for current collectors of electric rolling monorail transport systems for the high speeds.

The article discusses the design features of the mechanical and crew parts of the passenger electric locomotive DC EP2K, which directly have or causes an impact on the rail track. The purpose of the work is to consider the features of the interaction of the crew and the track when moving this electric locomotive in small radius curves by evaluating the forces arising in the "wheel-rail" contact of the three-axle bogies of the EP2K electric locomotive under these conditions. The need to solve such a problem is caused by the results of the analysis of statistical data on the wear of the ridges of the wheels of EP2K electric locomotives. These electric locomotives are operated at the united railway landfill, where there are a large number of curved sections, including curves of small radius. To achieve this goal, a design scheme of a three-axle trolley of an EP2K electric locomotive has been compiled, which allows a quantitative assessment of the forces acting in contact with the wheel ridges with the relay heads. According to the calculation scheme, a system of equations has been compiled, the solution of which makes it possible to estimate the forces between the ridge and the inner face of the rail head. Based on the results of the calculation of the guiding forces of the wheel pairs of the three-axle bogie of the EP2K electric locomotive, it is concluded that the values of the guiding force acting on the second wheel pair are comparable to the forces acting on the first and third wheel pairs, and in some variants even exceed the values of these forces. The obtained results can be used for further research on the development of measures aimed at reducing the wear of the ridges of the wheels of electric locomotives of the EP2K series under operating conditions.

In this article made a scan of a current situation in electric power measuring on the rolling stock, proposed a concept of Global automatic electric power measuring system for rolling stock, stated technical requirements for modern electric power measuring systems for rolling stock.

The algorithm of constructing the confidence interval of the model estimating the reliability of liner-tamping-straightening machines. The basis for assessing the reliability of transport-technological process initiated the concept of reliability, as the probability of reaching a liner-tamping-straightening machines ultimate goal in the manufacture of track work. One of the main factors reliability of track machines is the utilization of their time and availability to work. The guidelines are outdated factor data used during the working time that must be updated, as the machines are constantly being improved. According to the results of field testing of the liner-tamping-straightening machines was established database of values of the coefficients of availability and utilization over time. The data base values were recorded, the last two stages of verification: logical and mathematical. In the article the example of constructing a confidence interval values of the coefficient of use of time depending on the complex index of reliability: availability. To create the model formed the sample values from the database. After sampling in accordance with GOST R 8.736-2011 State system for ensuring the uniformity of measurements. The direct measurement repeated. Methods of processing the results of measurements were tested for their adherence to the law of normal distribution using the goodness of fit Pearson. Then built a model of the utilization of time depending on the availability liner-tamping-straightening machines (regression equation) and the confidence interval of the model. The proposed model works liner-tamping-straightening machines allow us to predict the main complex organizational and technological performance of a specific machine at the design stage of technological processes of track work. This method is versatile and can be used to assess the technical reliability of any machine systems, complete sets and individual cars.

The formalization of the problem and formulation of multicriteria select a preferred development scenario rail transportation process at the regional level, taking into account that this process is a complex system operating in a multi-variant conditions and uncertainties.

The development of railway transport is currently impossible to imagine without the use of mathematical models and algorithms. Consider the increase in speeds, reduction of travel time, while minimizing costs, is possible only with the qualitative and full use of the mathematical apparatus. The use of information technologies makes it possible to take an effective decision in the development of a project for the reconstruction of a railway line. The current state of the theory of railway transport is characterized by the presence of a developed system of mathematical models and algorithms for analyzing various features of railways. This opens up possibilities for building an approach to the problems of searching and optimizing design solutions on a mathematical basis, with the reduction to a minimum of costly and time-consuming physical modeling procedures. One of the main tasks that are set for the railway transport in the near future is to increase the speed of trains on existing railway lines with the use of computer technology (computer-aided design). The article deals with the problems of technical reconstruction of the railway plan to increase the speed of train movement. The urgency of the use of computer mathematical methods for the development of an optimal plan for increasing the speed of trains. A pair of mutually dual problems of optimal reconstruction of railway curves to increase the speed of trains with minimal capital investment is considered. As methods for solving the problems posed, the following methods were proposed: the method of steepest descent, a modified method of dynamic programming (the Cattell method), the method of indefinite Lagrange multipliers. The expediency of using each method to solve the problem is indicated. The considered methods allow to implement a number of computer-aided design procedures for the reconstruction of the railway plan.

Placement and fastening of freights, at their transportation by appointment to stations of the railroads Russian Federations, is made according to provisions of Specifications of placement and fastening of freights in cars and containers TsM - 943 (TU). Requirements of the TU separate points influence not only traffic safety of trains, but also the cost of transportation and as a result - JSC «RZD».

The article deals with the analysis of the modes of operation of shunting locomotives; characteristics of the setting characteristics of the traction generators when performing resistance tests of locomotives. The statistical average values of the load parameters of diesel generator sets of shunting locomotives TЭM2 in the process of performing shunting work on marshalling and precinct stations. When monitoring the external characteristics of the locomotive when performing resistance tests with the ASKI "CYPRESS" was observed of the external characteristics of a normal ("classical") and "convex" shape. Normal (classical) external characteristics of the locomotive TЭM2 No. 1 equidistant removed from the borders of the tolerance field; and "convex" external characteristics of the locomotive TЭM2 No. 2 , in the field of tolerance, support of the constancy of the power diesel generator sets, due to the imperfection of the machinery of the regulatory system, particularly the Electromechanical characteristics of the pathogen.

This article discusses the directions of digitalization of the transport industry, both in the Russian Federation and in foreign countries. The characteristic of the directions of digitalization of the transport industry as elements of the technological revolution (industry 4.0) is presented. The review of approaches and various digital platforms used for digitalization of the transport industry to identify and analyze the main vectors of development in the field of digitalization of the transport industry. Comparative data on the costs of the digital economy and R&D in Europe, the USA and Russia are presented. The large-scale penetration of digital technologies is shown, both at the managerial level and at the technological level, which in turn allows enterprises to make timely operational decisions during operational activities in order to increase the asset utilization rate, and also allows for the integration of all business processes of the enterprise through the use of IT technologies in the process approach of determining the relationship of business processes, four main directions of digitalization processes in the transport industry are identified The main directions of digitalization processes in the transport industry are highlighted. Examples of the introduction of digital technologies in road and rail transport in Russia and the world are given. The work of local digital information platforms in a single digital platform of the transport complex is reviewed. The advantages of using digital information platforms are shown. A model of a unified digital transport business-logistics ecosystem is proposed.

The article deals with the issues of improving the model of interaction with customers through the introduction of digitalization projects in the sphere of freight rail transport, describes the changes in the main functions of the company's divisions and technological aspects. The technological and economic effects of the development and implementation of freight transport digitalization projects on the example of improving the digital platform of interaction with customers are determined. The model of CRM-system implementation of transport services digitalization is worked out, investments on its development and implementation are defined. The main categories of risks with the greatest direct impact on the effectiveness of the new model implementation of interaction with customers are considered. The digital platform of interaction with the client allows to carry out the order of freight transportation service by rail without any additional financial and technological expenses connected with obtaining the qualified electronic signature, to simplify the organization of contractual work to obtain services and payments for them.

This paper presents an algorithm of computational experiments by definition shear load and tension mounts in the elements, which increases the safety of the operation of the railway transport system.

This article contains information on the main pollutants and weeds on the railway. In the article the questions of the intensity of the contamination of the broken stone ballast. Specified criterion for assigning secondary and preventative maintenance of way in accordance with the technical specifications. Given reasons for the increased intensity of the contamination of the ballast in the first year of life. The analysis contamination of the broken stone layer in areas the Trans-Siberian Railway and the Medium-Siberian Magistral. The Trans-Siberian railway is considered towards Chelyabinsk - Karbysheva - Novosibirsk, the Medium-Siberian Magistral in the direction of the Input - Irtysh - Medium-Siberian. The analysis was conducted based on the data of geological investigations design and survey institutions and to schedules of repairs for the West Siberian infrastructure Directorate. For ease of estimation of the parameters of weeds the resulting material was consolidated into a single table. Based on the table were revealed of the according contamination of crushed stone ballast thickness, ballast layer, from the conceded tonnage and length of operation in years. The article describes the structure of the pollutants by particle size, in terms of pass excess tonnage. Indicated levels of contamination of crushed stone ballast at different values of the missed tonnage (700 million tons 1200 million tons and 1400 million tons). Additionally, this work was determined the average level of contamination of the ballast particles less than 25 mm, 5 mm and 0,1 mm) and obtained a limit value of the allowable clogging the broken stone ballast more than 30 percent. The result revealed the need for reducing the contamination of the broken stone ballast by conducting a deep cleaning.

The article describes a software module of the initial image processing which allows to perform the contour image analysis in order to find, recognize and evaluate graphic images of various types of inhomogeneities. Application of software module will improve the accuracy of the evaluation of the internal surface of closed vessels in the absence of access control.

In transit shortly stacking forest freights on specialized platforms-hlystovozakh consignors have problems with development of technical documentation on placement and fastening of these freights as in normative documents there are no data on the allowed bending moments in frames of such platforms. In work as authors the method of calculation for distribution of lump of forest products on stacks on a platform-hlystovoze which can be used when transporting other stacking freights is offered and reasonable.

The paper deals with the influence of stray currents on underground metal structures located near the traction rail network. The paper presents a system consisting of a traction rail network, a grounding grid and two isolated underground conductors located under the stray currents influence caused by electrified railway transport. Analytical expressions for the calculation of the distribution of electrical quantities in underground structures with their mutual influence were obtained. The expressions were obtained using Hartley integral transform, which in contrast to the Fourier transform allows carrying out integral transformations only with real-valued functions. The obtained expressions allow determining the zone of dangerous influence of stray current and can be used in the design of underground structure protection.