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The introduced results of the investigation by valuation of efficiency the employment of the locomotives of the diesel (the diesel locomotives 3TE10M, UzTE16M3) and of the electrical (the electric locomotives 3VL80S) tractions in the plainly direction of railway track by the method of averagin design values. Modified average significances main indicator move working of the investigations of the diesel locomotives 3TE10M, UzTE16M3 of the evaluation mind numeral and table facts, and also graphic arts dependences, representative oneself arithmetical mean value with taking into account of the movement goods trains without any stops and with stops on the spaces stations, passing - tracks and divides points, which have received in the result to uses of the traction calculation for different conditions organization of the goods movement. Designate equations for organization calculation values mention exponents in the accepted range changing of the masses trains

The results of the investigations on the evaluation of efficiency use of the diesel locomotives UzTE16M4 in the mountainous direction Kumkurgan - Tashguzar of the Uzbek railways track by of the movement goods trains with stops and without any stops on the spaces station are presented.

The article includes research results of substantiation 3ТЕ10М diеsel locomotive`s movement work parameters on a hilly-mountainous direction of railway while moving freight trains with stops and without any stops on the spaces stations and separating points

The article discusses the specifics of the locomotive reliability indicators use in the Russian Railways. Examples of locomotive reliability indicators and the indicators used in the Russian Railways in the conclusion of service contracts, including under the life cycle contract are given. A method of transition from national standard to Russian Railways has been proposed. It is concluded that these procedures can be automated.

The article includes research results of analyzing and evaluating 3ТЕ10М diesel locomotive`s efficiency on a hilly-mountainous direction Marokand-Navoi of Uzbekistan railways while hauling freight trains with and without stopping on through stations (division points).Main parameters of basic movement work of researched UzTE16M3 diesel locomotives are shown as tabled values and graphic dependencies,also equations of organizing necessary calculations mentioned above in accepted range of mass variation are marked here.

It is shown that dynamic systems, «rolling stock - way» due to the unevenness of the path on length should be described by ordinary differential equations with variable coefficients, the method of analyzing differential equations with constant, variable and random coefficients describing the movement of electric locomotive nodes when they move along an uneven path. In the transition to a new paradigm, we can talk about areas of dynamic instability, which in the case of simple parametric resonances develop near critical frequencies, but this is not one specific point, but a zone that expands with increasing coefficients of parametric excitation. In addition, the presence of friction in the system does not guarantee the limitation of resonant amplitudes. The effect of parametric arousal factors on the width of the dynamic instability zone has been established. There are many other features in the behavior of differential equations with variable coefficients, so it is impossible to replace the action of unevenness with some equivalent geometric irregularity, since at this moment there is no exact solution to the problem with which to compare the results of approximate mathematical models.

The results of the investigations on the study condition movement of high-speed trains with active and passive systems inclination of body of the carriage in the curved directions of railway track with the registrations of the organizes in the movement and exploitation of the electric trains «Afrosiyob» in the direction Tashkent - Samarkand of the Uzbek railway track are presented are presented.

One of the many topics on which he worked V.V. Lukin in end of his life, was to improve the cast parts bogies freight wagons using the finite element method. In this paper the authors shows that the method of finite element analysis of the stress-strain state of two of the most essential parts a three-element bogie freight cars to further improve the their design.

The experience of the electrification of railways around the world. Performance of existing electric railways, and also performed calculations show that the use of electric traction has high efficiency and can improve the operational performance of the Ulaanbaatar Railway.

The methodology of calculation of the maximum weight of the composition of wagons.The calculation of the maximum weight of the composition of freight trains and wagons locomotive 2TE116 electric 2ES5K under the Ulaanbaatar Railway.Presented by the rationale for the choice of an electric series for Ulan-Bator Railway.

The article deals with such important concept as the resonance to three cases: when rolling stock is described by a system of linear differential equations with constant coefficients, when the mathematical model of rolling stock represented a nonlinear system of differential equations, and when in the latter we take into account the multiplicative disturbance from railway, namely its non-equal-elasticity between sleepers. In this case, speak properly and correctly is not about a particular value of RMS-velocity, but on parametric instability areas.

Features of the methods of calculation of a braking distance of the train applied now are considered. The main shortcomings of the most widespread method of definition of a braking distance on speed intervals are shown. Authors offered the new method of calculation allowing to consider critical parameters of process of braking (speed of a brake wave; character of an indicator diagram of the brake cylinder and mode of a brake; the actual initial speed for calculation of a way of action of brakes of the train). For verification of the offered method computer modeling is executed and the analysis of results of the different methods of calculation of braking length received at application is carried out. The new method allows to make calculation of braking length of the rolling stock more precisely.

A study of the influence of non-linear parameters spring of a freight car suspension (stiffness spring, length base of a bogie, roughnesses railway) on the amplitude and phase fluctuations bouncing body is completed. Defined own vibrational frequency jumps car body as a function of the parameters.

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 influence of parameters of the spring suspension of freight wagon and axial load on its dynamic qualities and traffic safety. Showing the flaws of the standard three-piece bogie, influencing the dynamics and traffic safety. Investigated the horizontal dynamics of the of freight vechicle and the value of horizontal stiffness of spring suspension bogie for unoaden vechicle .

In the article the possibilities of improving the adjustment properties and technical characteristics of electric rolling stock with collector traction motors are considered. Semiconductor devices can improve the smoothness of the traction motors start-up due to a more even voltage increase, smooth regulation of the field current in the traction and braking modes. Variants of simplified power circuits of eight-axis direct current electric locomotives with a minimum number of switching electrical devices have been developed, allowing to reduce weight and size of the equipment, increase the reliability of power circuits operations. Circuit solutions for protecting the wheelset of an electric locomotive from boxing and skidding by enhancing the traction motors field are considered. The role of semiconductor converters in the improvement of rolling stock with a combined and dual power is noted. The ways to improve the efficiency of electric braking by collector traction motors are listed. The necessity of using adaptive microprocessor control systems for semiconductor converters for expanding their functional capabilities and realizing optimal parameters of direct current rolling stock is noted.

The design of the working body planner slopes for liner-tamping-finishing machine VPO-3000. Based on the analysis of existing designs of planners ball-fin track machines (VPO-3000,SZP-600R,PB-01,SS-3,ELB-3MK,ELB-4K),finding to operate on a network of West-Siberian Railway selected under the most-walked analogue - plow machine SZP-600r.The proposed project design of all structural elements of the plow SZP-600R has been changed in view of the desired trajectories scheduler slopes and its geometrical layout on the machine VPO-3000,as well as taking into account the requirements of the design and of top-Story-of way,in particular gravel ballast,after work on her cleaning ballast cleaner MF-600. The selection of geometric parameters and the calculation of design elements scheduler slopes are made using APM WinMashin programs according to the real conditionscess of the load operation and,in particular: arrow with the plow is in working position and performs cutting and Zdzvizhkou crude ballast for support of contact network; arrow disclosed at the maximum angle ?; plows are not disclosed and are located along the axis of the boom. The developed design planner slopes allows removal of contaminated ballast portion of the railway line,as well as other operators,radio planning prism slopes. The proposed project will improve the machine VPO-3000 allows the excluded-tained from the technological process of modernization of railroad tracks Add-tional machine to remove the contaminated site ballast,which reduces the cost of performing the work.

The article proposes a method of using the mathematical apparatus of the theory of fuzzy sets in automation of the locomotives reliability management, because when writing algorithms there is a problem of transition from not fully formalized concepts of human communication to formalizing software. Examples of the fuzzy sets use in calculating the locomotives reliability are described. When calculating the reliability parameters manually, the volume of calculations does not allow you to move to more complex algorithms. When there are automated systems, it is necessary for each indicator of the transportation process, which affects its reliability, to set the function of belonging to a dangerous and normal value using the mathematical apparatus of the theory of fuzzy sets. Then the risk of a dangerous event will be assessed in probability, taking into account the logical claim to the risk.

One of the main tasks of optimizing the periodicity of maintenance operation and repairs is to obtain an economic effect with the preservation of high reliability of rolling stock equipment. To obtain an economic effect, it is necessary to conduct an investigation all possible factors affecting the operation of rolling stock under specific operating conditions. Their influence has a direct impact on the reliability of rolling stock.

Currently, in the brake system of operated cars, there is a problem of lack of brake pressure on the wheel, which is necessary for the movement of the train at a set speed in accordance with the regulatory documentation. This is due to the tendency to increase the mass of trains and the maximum load of cars with a constant tare weight, which requires an extended range of pressure control in the brake cylinder by an air distributor or auto mode, depending on the load of the car. To solve this problem, calculations were made of the braking coefficient of cars equipped with air distributors № 483, which showed that the freight car was not equipped with brakes to run as part of a train at a set speed. In the course of engineering studies, it turned out that increasing the spring rate of loaded and medium modes can increase the adjusting range of the air distributor and partially solve the problem of lack of brake pressure. Thus, it is proposed to recalculate the stiffness of the adjusting spring. Calculations of the rigidity of regular and proposed springs were made. The braking coefficient has been recalculated, taking into account the increased spring constant. As a result, this coefficient has increased, which makes it possible to remove speed limits. The proposed method for upgrading the air distributor can be carried out on all types of repairs, which facilitates the implementation process.

The results of experimental research on the diagnostic features of wheel-motor unit assemblies dependence on the speed of the wheel-pair. The parameters of the distribution of diagnostic features are given and a method of providing higher reliability of diagnostics of electric train WMU is provided

The way of diagnosing allowing without removal and dismantling of a nozzle on the working engine to define the chart of movement of a needle of a spray by means of the sensor of pressure, established in a cavity over a nozzle needle is offered, to estimate the valid corner of an advancing of injection of fuel and a technical condition of a nozzle of the diesel.

The state of industrial injuries during operation and repair technology of power supply devices in the power complex of Russian Railways, which confirms the relevance of the development and implementation of methods and technical means of protecting electrical personnel of the power complex of Russian Railways from electrical injury. The analysis of existing methods of maintenance, operation and repair technology of the contact network is carried out. An innovative solution is proposed in the field of electrical safety of personnel of the energy complex of JSC "Russian Railways" through the creation of a single high-precision coordinate space of power supply devices, implemented on the basis of mechanisms for using the global navigation satellite systems GLONASS / GPS.Considered the implementation of power supply and sectioning circuits and main electrical connections in the form of a digital model, which has a mathematical description of the geometric characteristics and spatial position of the contact network; feeding feeders; overhead lines: longitudinal power supply, automatic blocking, centralization and blocking, lines «two wires - rail», lighting; waveguide and other objects of power supply and electrification of railways. On the basis of modeling dangerous situations of electric shock, the electrical personnel of the power complex of JSC «Russian Railways» during the maintenance and repair of overhead contact network devices in all categories of work substantiated the effectiveness of the implementation of a spatial database in the form of a digital model of contact network devices. The use of a digital model of the overhead contact network will increase the level of electrical safety during maintenance and repair of overhead contact network devices and reduce the level of electrical injury to employees of the power complex of Russian Railways.

Explores the impact of truly existing longitudinal non-elastic railway track caused by the presence of sleepers and other factors on the vertical dynamic of vehicle. Formulas to determine the bounds of simple combinational and parametric resonances is obtained. Areas of dynamic instability of electric locomotive EP2K is builted.

In this paper the authors propose to consider the peculiarities of making mathematical models of rolling stock and its dynamic behavior when driving on irregular resilience railway line in the longitudinal direction. We present a qualitative and empirical analyzes of longitudinal resilience railway railway. In conclusion, given the conclusion, on the basis of its proposed further consideration of mathematical aspects of the above solutions of systems of differential equations of motion of the rolling stock on irregular resilience way.