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In article the possibilities of decrease in energy consumption on draft at the movement of electric trains in the conditions of a flat profile of West Siberian Railway due to shutdown of traction section of an electric train and rational distribution of time of the course in all direction of the movement are considered. During the calculating and creation of schedules of the train for site is used an analytical method of the solution of the differential equation of the movement of the train. For the analysis of optimum schedules of the train at each stage of their modeling an inspection of calculations which allows to guarantee reliability of the received results is car-ried out. For definition of potential opportunities of decrease in energy consumption on draft at traffic control of an electric train the concrete trip of an electric train of ED4M along a route Omsk - Irtyshskaya is analysed. Settlement schedules of an electric train are provided in the considered trip, and also with shutdown of one traction section. Average is defined by standard means of system of computer modeling on the way the electric train speed, dispersion of speed on the way, energy consumption. The received size of energy consumption for draft with the disconnected traction section is much less than energy consumption on a real trip. Rational distribution of time of the course of the electric train in all direction of movement from a condition of preserving time of its arrival also allows to reduce an electric power expense on draft by the terminal station. Based on consumption data of the electric power in general possible economy of energy costs on draft due to application of the offered methods is determined by Omsk TCh-31 depot.

On the basis of experimental data thereis a mathematical model in thisarticle. Its made from the registration options in acfual operation mode of the locomotive. This mathematical model describes the technical condition of the locomotive and evaluates the parameters and characteristics. Considerable attention is paid to complex state operation of the facility. In dealing with the mathhematical model it’s defined the main locomotive operation indicator.

The article is devoted to the analysis of the quality of materials for the manufacture of fasteners for rolling stock. The paper presents the results of studies of parts destroyed during operation that are used for fastening the undercarriage assemblies, spring suspension and impact-traction devices of rolling stock. The purpose of the work is to establish the probable causes of the destruction of parts under the action of static and dynamic loads during movement on the track. The paper describes the methodology and sequence of examination of materials based on the analysis of the chemical composition of metals, the assessment of mechanical properties and the study of the surfaces of fractures of parts. The results of spectral analysis of the metal of the investigated parts, measurements of hardness and analysis of the surface of fractures of the parts are presented, which allowed to establish the possible nature, sequence and causes of their destruction. The results obtained in the course of the research showed that the main reason for the breaks in the fasteners of rolling stock is the impact on them of loads exceeding the tensile strength of the metal. It was found that the brand used in the production of metal does not meet the requirements of the normative-technical documentation for the product and is not intended for the manufacture of fasteners. Thus, the findings confirm the need to tighten the quality control of materials used in the manufacture of fasteners for rolling stock, and can be used in machine-building enterprises specializing in the production of components and spare parts for railway rolling stock. The main conclusion of the work is the need to use in the production of fastening parts of the responsible components and assemblies of rolling stock, structurally reasonable steels and alloys.

In the article the paper considers mathematical modeling of fuel equipment of high pressure and regulator of the rotation frequency of the crankshaft of the diesel engine. Analysis of factors affecting fuel equipment, mathematical modelling of the process of fuel into the cylinders, as well as mathematically describes the speed control of the crankshaft of the diesel diesel engine. Joint mathematical model of fuel equipment and rotation speed regulator. Presented algorithm and program calculation process the fuel feed to the cylinders of a diesel engine with a light hydraulic characteristics of generalized elements of fuel equipment and provision of the Executive mechanism of the regulator of the rotation frequency of the crankshaft of the diesel engine. In the work used mathematical and simulation, system analysis methods, the comparative method, methods of theoretical knowledge (formalisation), common logical methods and techniques of research (analysis, synthesis, classification, analogy ).

Traffic safety of trains is a priority task of JSC «Russian Railways». In article the reasons of spontaneous operation of brakes of freight trains are investigated and their statistics depending on density of brake network of the train is given. Calculation of pressure in the camera under the equalization piston of the crane of the driver is made. Inertial characteristics of the equalization piston and its static characteristics are defined. Process of spontaneous operation of autobrakes on the basis of fundamental laws of a hydraulic gas dynamics is simulated.

The calculation of the performance indicators of the traction power supply system in steady-state modes is focused on solving a wide range of tasks related to the choice of parameters of the power equipment of traction substations, the placement of linear equipment, the cross section of the contact suspension, the comparison of options for technical and economic indicators. Currently, the appearance of various regulated devices in the traction power supply system necessitates the improvement of calculation methods and algorithms used in various software complexes. In this paper, the issues of constructing substitution schemes for modeling the operation of the traction power supply system in steady-state modes, taking into account the devices for automatic switching on and off of the backup converter unit of the traction substation and the accumulation of electricity. The corresponding substitution schemes and fragments of calculation algorithms that take into account the characteristics and operating modes of these devices are presented. The use of the proposed substitution schemes allows us to take into account in the calculations the difference in the external characteristics of the converter units, to assess the compliance of the automation settings with the level of electric traction load and the effect of the device on the voltage level on the substation tires and in the contact network, the load capacity of traction substations, and for the accumulation device, taking into account the charging and discharge characteristics, to additionally assess the impact on the effectiveness of regenerative braking. The proposed algorithms of the devices are designed to improve the methods of calculating the indicators of the traction power supply system. The paper proposes an improved method for calculating the indicators of the traction power supply system, based on simultaneous traction and electrical calculations, based on the database of calculations performed for various conditions of electric rolling stock on the railway section.

The article summarizes and analyzes data on the use of natural gas (methane) as an additive to diesel fuel on the low-pressure line of diesel engines of locomotive CHME3.The results of The gas engine fuel effect assessment on the efficiency of locomotives CHME3 are presented.

The article analyzes the test schemes of induction traction motors by the mutual load method using DC generators as load machines and powered by a three-phase AC network with a frequency of 50 Hz. Features of functioning of each of the given schemes of mutual loading are considered. The disadvantages of these schemes are noted, due to the presence of excess equipment or the lack of short-circuit protection in the anchor circuit of the load generator and the complexity of its connection to the DC link. The scheme developed by the authors is proposed, devoid of the noted disadvantages of the known schemes and combining all their advantages, which is the simplest both in the power part and in controlling the process of connecting the armature winding to the DC link of a frequency Converter. A mathematical model of a test system consisting of an induction traction motor, a DC load generator and a two-link static frequency Converter is presented. The mathematical model of this test system is made up of parts corresponding to its individual elements. The presented mathematical model makes it possible to calculate the static and dynamic operating modes of the proposed scheme at the stage of development of an electrical complex for testing induction traction motors. Recommendations on the implementation of developments in the operation of induction traction motors in locomotive repair depots are given. The expediency of implementing the results of work in organizations-developers of test stations for induction traction motors is also noted.

To improve the reliability of the detection of a technical condition of the mechanical components of rail rolling stock and calculate the critical values of the parameters put forward the hypothesis of the homogeneity of groups of similar nodes mechanical electron-tropoezda. As part of an experiment to verify this hypothesis, carried out the collection of information about the values of vibration parameters of electric components in the movement; the technique and the statistical analysis of the measured vibration parameters for the same type of bonds-fishing.

The technical condition of the cylinder-piston group has significant effect on the reliable operation of the diesel locomotive engines. The most susceptible to the premature failure is the head of cylinders. It is caused by the heat release rate of the combustion chamber detail. The increase of the diesel locomotive engines cylinder heads durability in operation causes the relevance of the researches. In the article the set of the factors influencing on the diesel locomotive engine cylinder heads durability is defined, their main groups and subgroups are found. In the offered classification the subjective factors which directly depend on the human activity are dominated. It is possible to reduce the influence of the subjective factors by means of the human activity wrong solutions reduction while operating and repairing locomotives. The measures that improve diesel locomotive engine operation and positively affect the reliability of the cylinder heads are considered. Simple in implementation methods to extend the service life of the cylinder-piston group are offered. They are decreasing temperatures gradient during the post-stopping period of the power point and upgrading cooling system.

Solidifying transportation of goods by rail, namely, tank wagons is accompanied a number of difficulties. These include: lowering the temperature of the transported oil, accompanied by the growth of its viscosity, the inability to quickly discharge, change in performance of transported oil products, an increase in idle tank cars. The analysis of the cooling rate of the goods transported, depending on the size and thickness of the insulating layer. Introduced formulas show that the presence of the heat-insulating sheath is cylindrical vessel radius deviation from the optimum value. When this thermal insulation reduces considerably the heat transfer coefficient in the surrounding area and to accelerate the discharge process.

The article discusses the approach to evaluation of technical condition of the diesel locomotive power plant fuel system as a part of an integrated microprocessor control systems. Presents an approach of generalized evaluation of technical condition of the power plant fuel system. By results of the analysis of a fuel system graph model set of control parameters is selected, the algorithm allowing to establish the reasons of controlled parameters output of admissible limits is developed.

The article is devoted to one of the urgent problems in the activities of JSC “RZD“- increasing the energy efficiency indicators of locomotives, namely, new generation locomotives running on liquefied natural gas (LNG) - GT1h series gas turbine locomotives. The results are presented for the analysis of typical diagrams of traction work at hauling trains by the gas turbine locomotive on the Surgut - Voinovka section of the Sverdlovsk Railway. Measures are proposed to reduce the specific consumption of the fuel used for hauling operations for various running duties of a gas turbine locomotive (traction mode, idling, transient modes). The justification and description are given for the selected technical solutions to reduce fuel consumption by the “gas turbine engine-traction generator” system during gas turbine locomotive operation in idle and traction modes. The results of tests of the gas turbine locomotive during idling and in traction mode using the proposed technical solutions are presented. The comparative analysis of the results obtained is carried out and the economic assessment of the effectiveness of the selected measures is given when the gas turbine locomotive is operating in idle and traction modes. A mathematical model is proposed for the electric traction drive and the automatic control system of the gas turbine locomotive, developed using the Matlab Simulink environment and designed to study the operation and optimization of electromagnetic processes occurring in the electric traction drive of the gas turbine locomotive in various modes of its operation. Based on the results of modeling the algorithms for the operation of the automatic control system (CAP) allowing to provide energy-optimal loading paths for the “gas turbine engine - traction generator” system in the entire power control range, the economic assessment of the effectiveness of the CAP algorithms is given. The economic assessment is presented for the implementation of a set of proposed measures to improve the energy efficiency of gas turbine locomotives.

The article discusses the approach to operational evaluation of technical condition of the diesel locomotive power plant functional subsystems as a part of an integrated microprocessor control systems. Presents an approach to operational evaluation of technical condition of a fuel system. By results of the analysis of a fuel system graph model set of control parameters is selected, the algorithm allowing to establish the reasons of controlled parameters output of admissible limits is developed.

The article deals with the issue of using electric power storage systems in railway transport. It is noted that they are used in renewable energy sources and on hybrid shunting diesel locomotives. The possibility of using electric power storage systems to improve the efficiency of using electric power for train traction is indicated. The introduction of electric energy storage systems in the traction power supply system is hampered by high capital costs and the need to strengthen several adjacent inter-substation zones at once. It is proposed to consider the possibility of creating a mobile energy storage system, all the equipment of which will be placed in containers installed on cargo platforms, which will allow such a system to be quickly moved. The purpose of introducing a mobile power storage system is to temporarily strengthen the traction power supply system during a planned overhaul or emergency repair of one of the tracks on double-track sections of the railway. In this case, there is a need for a batch pass of trains alternately in even and odd directions on the same track. The possibility of using a mobile energy storage system is considered on the example of a real section of the railway. For a given schedule of passing train packages, the dependence of the storage capacity taken off from time, the maximum power and the nominal effective energy intensity of the storage system are determined. An estimate of the electricity storage system cost is given. It is shown that more than 70 % of the total cost of the electricity storage system falls on the imported energy conversion subsystem. It is concluded that it is necessary to develop domestic converter subsystems.

A method to an assessment of influence on the expenditure of electrical energy for traction of trains, parameters of graphic time-table in the conditions of using the regenerative braking is being considered in the article. The retrieval of version with the minimal using of energy is based on the modeling of graphic time-table by different train-to-train intervals in the conditions of burst-mode access’ organization on the railway section. By results of modeling it is proposed to represent the derived dependence by changing of electrical energy’s expenditure on parameters of graphic time-table in the form of analytic function of several variables n-order forthe following using by normative plotting of movement for the purpose of curtailing electrical energy’s expenditure for traction on the trains.

Low-density railway lines (LDRL) make up almost 1/5 (15,353 km) (18.2 %) of the total length of Railways of JSC "Russian Railways". Currently, the operation of LDRLs in countries of Europe and in Russia is very expensive. This is due to the large number of manual management operations and the excessive need for staff. The solution to the problem of efficiency of use of LDRL in the conditions of market economy is one of the priority tasks facing the transport industry. Despite the fact that LDRL are poorly loaded (on average 3.5 pairs of trains per day) and, therefore, unprofitable, their content is subject to almost the same requirements as for the mainlines, including reporting requirements. The stationmaster and staff of LDRL are overloaded the reporting documentation. This requires the performance of work on the revision of the technology, standards of service and operating procedures LDRL. The purpose of the study is to reduce costs for the main types of activities by changing the technology of maintenance and operation of LDRL. The subject of this study is the operation and maintenance of the LDRL network of JSC "Russian Railways". The methodology of the conducted research is based on the system analysis and scientific generalization of domestic and foreign experience in operation and maintenance of LDRL. The article highlights the technological features of operation of the LDRL. The classification of lines with low-intensity traffic has been developed and the criteria for their assignment to the proposed types have been determined. The peculiarities of the organization of movement of trains, passenger and freight work for the LDRL of various types are presented.

In article from positions of uniform life cycle locomotives, from creation before write-off, the major factors influencing the level of their reliability are considered. Value of these factors will give the chance to connect mathematical model the potential level of reliability put in the specification on design of new locomotives with the actual reliability in specific conditions of operation and on this basis to determine the optimum parameters systems of maintenance and repair corresponding to maximum efficiency of use locomotives for all life cycle.

The article describes the current state of railway non-traction electric power supply system in the electric grid complex. The main drawbacks of the existing electricity metering system in 0.4-10 kV distribution networks are shown. The main directions of non-tractive electric grid complex innovative development are considered, including directed to increase the efficiency of electric energy transformation, transmission and consumption processes due to the management of distribution networks operating modes. The basic principles of "Digital district power supply" constructing are given.

The factors affecting the operational reliability of the assembly platform of a rail service car maintaining the repair and installation on the railways are considered in the paper. An assessment and analysis of a system of quantitative indices of reliability is performed, the methods for their separate determination by mechanical equipment and hydro and electrical equipment is described. The strategy of maintenance and repair combined with the use of methods and means of a modern diagnostic system is considered; it ensures the estimation of the object reliability during its design, operation and repair.

The article outlines methodological approaches to assessing the effectiveness of measures aimed at improving the efficiency of recuperative braking application and the use of energy recovery. An example of calculating the energy efficiency of recuperation on a double-track section of direct current is given. The analysis of the influence of changes in such parameters of the section as technical and district speed of freight trains on the efficiency of energy recovery. The article presents the results of estimating the energy recovery components that form the economic efficiency of recuperation, and describes the approaches to predicting the change in this efficiency, depending on the change in the influencing factors.

The article describes the structural scheme, the algorithmic basis, functional composition and some technological characteristics of the hardware and software of information system of operating control parameters of the electric power in the traction power supply network, structural peculiarities of information-measuring complex, the hub characteristics of the data collection substation, type of equipment used in information and computational complex structure of servers for processing and storage, data volumes and characteristics of the necessary communication lines.

The authors propose a model of justification of the duration of the operation liner-tamping-straightening and construction machinery. Using this model, we can evaluate the efficiency and reliability of machines on any object. This allows you to most reliably predict the timing of production of certain types of works and their cost at the design stage. The article presents the indicators of full-scale tests and the estimation of reliability of manufacturing operations. One of the main factors of reliability of work of construction machines is the utilization of their time. All normative documents are obsolete data on the utilization of machines during the working time, which need updating, as the machines are constantly improving. To assess the reliability of working machines, the authors developed a database of the results of field tests liner-tamping-straightening machines, cranes, excavators, bulldozers, pipe layers, drilling rigs and dredges. To prove the validity of database values according to the results of full-scale tests were carried out two stages of verification: logical and mathematical. After sampling in accordance with GOST R 8.736-2011 was verified that it belongs to the law of normal distribution using the criterion of Pearson agreement. It was further calculated the reliability and risk of the planned volume of work in scheduled period of time. When it was considered the utilization ratio of machines time and the risk of deviation from the mean. The proposed approach to the assessment of duration of liner-tamping-straightening and construction machinery can be extended to any type of equipment and will allow to obtain numerical values for evaluating the reliability of production work in the scheduled time, which is very important in the construction, repair and maintenance.

It’s investigated and analyzed the operations which carried out by assembled trains in the section, developed the mathematical model which ordered the time traffic of assembled trains, in supposed an effective method in shortening of time in traffic of trains between of two technical stations.

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.