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In the article the most effective way to detect heat losses associated with loose-Stu walling. A method for use of aerodynamic and thermodynamic - cal research with the possibility of the use of rail transport.

In this paper analyzed the design of cast and weld side frames three-piece bogies. The directions of further improvement design side of a bogie frame.

In order to extend the service life of electric machines traction rolling stock has been proposed recovery technology insulation using infrared energy, will improve the quality of insulation in terms of the breakdown voltage and hardness. This article analyzes and estimated of experimental studies conducted in two different meaningful of the work in this direction. Presents an analysis these works in terms of distinctive features and conclusions of the pilot studies. According to the analysis formulated a new hypothesis about the need to address when capsulating the insulation and its elasticity. Also set new directions for future research.

In article are considered standard technologies of ultrasonic inspection of under-hub parts of press-fitted wheelset axles accordingly to existing regulations: GD (Guidance Document) 07.09-97 and STO (Standard of the Organization) Russian Railways 1.11.002-2008, and proposed improve-ment measures of nondestructive inspection that are confirmed by calculation and experimentally

The possibilities of improving speed and reducing the time of passenger trains on the Trans-Siberian railway, including through new passenger locomotives EP1, EP2K, EP20.

The paper describes the physical nature of the occurrence of disturbing forces in traction gears during intermating teeth and determination of the amplitude-frequency content of the spectrum. In addition, the experimentally determined defects arising elements locomotive traction gearing.

The method of creation of mathematical models of the mechanical oscillatory systems which are turning on in the structure mechanisms with kinematic couples of slippage is offered. It is shown that introduction of mechanisms can be interpreted as introduction to initial model of the additional feedback, in general, to steering on absolute speedup and on an absolute deviation. A basis of the offered technology of creation of mathematical models are representations that in the presence of the mechanism or a mechanical chain of other look power and kinematic indignations form various structures of dynamic interactions. The analytical ratios defining dynamic properties of systems are received. The features of dynamic properties which are shown in various forms of dynamic interactions and frequency characteristics are considered.

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 article presents the method of calculation of heat capacity working relations in the process of fuel combustion. Analytical dependence of heat capacity ratio are presented depending on the temperature of products of combustion, excess air ratio and proportion of burnt fuel for different formulations of mixed types of hydrocarbon fuel.

The account of a real technical condition of the equipment of the locomotive at planning of volumes of its repair is one of the major reserves of reduction of working costs of railways and decrease in the cost price of transportations. The continuous control of a technical condition of the locomotive in operation is carried out with use of stationary and onboard means of technical diagnostics. The increasing of operational profitability and reliability of diesel locomotives demands continuous control for a technical condition of their equipment in the service. The wide-band exhaust gases oxygen content sensor can be used for continuous monitoring of the air excess coefficient in the locomotive diesel engine cylinders. This type sensors are widely used in automotive diesel engines control systems. It means for indirect estimation of the engine cylinders mixture quality by the exhaust gases oxygen content.

Considered the features of modern automatic control systems of pantographs. The spectral density analysis of pantograph contact force at high speeds showed requirements for robust control systems, which allows to significantly improve the quality of the current collection. Proposed the ways to improve the automatic control systems for pantographs, aimed at improving the speed and reducing the inertia of the system.

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.

In article presented the mathematical model of fuel heating of the high pressure pipeline of diesel engines fuel equipment and calculation results of temperature of its external surface at various temperatures air and the fuel equipment technical conditions.

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.

A theoretical and practical study of gondola cars equipped with various models of trucks: 18-100 and 18-9810. Compiled design scheme, system of differential equations and bringing its solution for different types of trucks. The analysis of the solutions of this system are found depending on the amplitude of the pitching and bouncing speed carriage movement. Found dynamic forces on the one spring group. Based on the comparison of the two bogies conclusions about the benefits of truck 18-9810.

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.

When modeling the traction power supply systems, reflecting the processes of interaction of electric traction power supply and mobile electrical loads (electric and electric) is one of the elements of movement imitation organization trains in space. The effect of moving trains in simulations (MI) in MatLab on schedule at the analyzed site traffic necessitates sequential switching models of electric rolling stock (EPS) to the traction network, so that its effect is realized by moving the site. However, in this case, there really is not the processes taking place in reality. This is due to the realization of the simulation method of discrete movements, characterized in that the CSE, one located on a cell - the traction network model at one time, thereafter jumps to another. While EPS previous cell is switched off and switched on the next cell. Thus there does not exist in reality switching processes that distort the results of the studies. Methods to reduce the negative consequences of such distortions are addressed in this article.

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 paper is mathematical description, which allows to evaluate the properties of the system at the stage of theoretical development. A model of the anti-vibration suspension system with linear adjustment, which allows to study the dynamic characteristics of vibration isolation system threads compensation rigidity. The results of simulation program Matlab.

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.

The article deals with the cooling and heating of individual components and assemblies diesel engines at low ambient temperatures. The more attention is paid to the description of the characteristics of the intensity of the cooling water system of diesel locomotive engines. The article presents the results of investigation of the outdoor temperature , operating conditions of load and no-load on the cooling system of. The parameters of the cooling water and engine oil that characterize the thermal conditions of the diesel engine. We reviewed and analyzed various ways of warming systems, diesel engines using airborne and stationary devices. The work is aimed at improving the efficiency of diesel locomotive at warming by reducing the operating time of the diesel engine is idling.

Comparative bench tests of acoustic emission occurring during the interaction of the brake pad with a brake disc for the brake unit with a stationary brake pad and a brake unit with a floating brake pad are carried out. The floating brake pad, depending on the braking conditions, occupies an optimum position on the surface of the brake disc, while making movements of an oscillating nature around the turning axis that does not pass through its center of mass and parallel to the axis of rotation of the brake disc. The frequency range is determined in which there are noticeable differences in the acoustic emission of a brake unit with a floating brake pad and a stationary brake pad. The theory of fuzzy sets is used to analyze the acoustic emission perceived by the human hearing organs, which accompanies the interaction of the surfaces of a friction pair in the investigated frequency region. The results of a comparative analysis of the noise characteristics of the brake blocks under investigation are discussed. The spectra of the acoustic emission power are compared according to the obtained base of the expert evaluation of the noise power perceived by man.

The paper describes a mathematical model of gas-dynamic movement through the through defects in the body of the boiler tank cars. The mathematical model allows to take into account the processes of gas flow at low pressure drop and the impact of the level of roughness of the inner surface of the through channel formation jet escaping gas. The comparison of the results of theoretical modeling and experimental studies of the velocity of the gas flow and temperature under different conditions. The study identified the laws of gas flow through a series of classic models through defects. Shows the dependence of the temperature of the escaping gas flow from the exhaust velocity and the level of roughness of the internal surface of the through channel, which allows us to estimate the nature of gas flow and temperature gradient. The obtained results allow to adjust the level of sensitivity to rejection temperature during thermal leakage control boilers railway tanks.

It was shown that during operation, under the influence of high alternating loads is change of physical and mechanical properties of the metal, which leads to decrease in toughness. New method for estimate residual resource of components freight cars railway transport is presented. This method is based on the study of structural changes metals during their exploitation. On the basis of monitoring structural changes in metals during their exploitation may be developed effective system estimate of residual resource.

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 ).