Iss 3 (2012)
View or download the full issue
PDF (Russian)
THEORY
4-9 226
Abstract
The authors argue that continued monitoring of technical data makes possible to increase operation reliability of train of machines via prompt detection of the conditions of rolling stock that precede failures. The article describes the two-level structural and troubleshooting pattern of generalized machine that serves to explicitly detect the risk of failure for given systems and devices as well as for the vehicle in the large. Technical state of the machine is detected once entropy decreasing is equal to its maximal value.
10-13 150
Abstract
The author studies dynamics of friction forces in frictional wedge-style damper of a freight car. He uses analytic method, correlation analysis, and proposes his own approach combining theoretical, empiric methods and formulae of mathematical statistics.
14-23 205
Abstract
The authors describe the solution of a problem of engineering of a model of “conditions of existence of airlines” (CEA). The model means a rule that determines creation, operation and disappearance of airlines (direct air links between two cities). They create fuzzy neuronet model of CEA using genetic algorithm, Kohonen self-organizing map, Fuzzy Logic Toolbox software and neuronal network package for Matlab programming environment. The model adequately reflects the structure of communication core of the airlines’ network and allows to forecast its future developments.
24-29 183
Abstract
The author studies methods of synthesis and analysis of anti-interference, asymptotically optimal receptors and of a receptor with delimiter under strong non-Gaussian interferences with different kinds of distribution law. The article describes analytical expression and computations of amplitude behavior and rates of interference suppression in non-Gaussian sector, as well as of kurtosis.
30-33 220
Abstract
The authors have engineered and described the correlation methods of detection of non-linear distortion of single-band oscillation formed by speech waveform. The method ensures the growth of noise immunity of railway communications by 3-5 times via transmission of deeply limited at amplitude (clipped) speech waveforms and further rebuilding of their envelope at the receiving site.
34-36 255
Abstract
The authors offer model pattern and mathematical tools to calculate productivity and other parameters of railway ballast cleaners allowing to enhance designing of devices and subassemblies.
SCIENCE AND ENGINEERING
38-43 323
Abstract
The authors study methods of detecting parameters of operation process of diesel engine in service, of troubleshooting in the systems of fuel supply and of gas distribution. They give some results of monitoring of diesel engines and estimate economic efficiency of proposed express troubleshooting.
44-53 175
Abstract
The author studies the system of guiding of solar power station with concentrator towards the sun. The system optimizes functions of autonomous source of power supply, simplifies the design of mechanical part of the station, ensures power saving operation of monitoring electric drive and the return of concentrator to the starting position in the next morning hours.
54-59 179
Abstract
The author analyzes reliability of bogie frames of metro cars see their operation in subways of different Russian cities. He studies specific operation conditions, dynamic loads, functions of assigned life cycle, other factors, and their influence on the choice of engineer decisions, modernization policy of designing offices and car manufacturers.
60-65 140
Abstract
The author describes the risks of dangerous situations and accidents at the railways with traction tension of 25 kW AC when the voltage is lower than nominal level. The author proposes a technique to raise the voltage to its nominal value using simultaneously the traditional method of transversal capacitive compensation and a new one, that of booster transformers.
66-69 283
Abstract
The article deals with outlooks and problems of the use of locomobiles at the rail tracks of industrial entities. Locomobiles are engineered on the basis of heavy-duty trucks and can become an alternative to switchers. But by now they haven’t become yet a reliable solution. The authors study the advantages and shortcomings of locomobiles, reasons why they haven’t managed to partially replace the switchers which are less universal in use.
70-73 174
Abstract
The heat exchange devices play an important role in operation of transport power engines. The author argues that one of the tasks is to improve heat hydraulic features of plain tubal matrix with the help of artificial turbulization of the flow in the boundary layer near the surface.
74-77 250
Abstract
The authors propose the method of temporary control of track lines that does not need power consuming measuring tools as opposed to the method of permanent control. They prove that the mathematical model allows to reduce power and material consumption of rail circuits, to efficiently use industrial space.
78-80 172
Abstract
The article is devoted to a new method of the control of interaction of rail circuits. The threshold value simultaneously with increased frequency is detected when the train occupies the rail circuit. When the current voltage exceeds the threshold value the train releases the line. The proposed pattern raises shunt sensitivity and extends the length of the rail circuit.
ENGINEERING ECOLOGY
82-89 223
Abstract
Competition at the transportation market, increased velocity of the traffic, complication of operation conditions for rolling stock and infrastructure cause new anthropogenic risks, reduce traffic safety. Railways need new methods to prevent risks, particularly to monitor the railway tracks. The joint researches conducted by Moscow State University of Railway Engineering, Bauman Moscow State Technical University and JSC Russian Railways have resulted in development of the tools of contactless diagnostics and troubleshooting of the rails using reflected light polarization effect.
90-95 137
Abstract
The authors have created the numerical realization of a variant of finite element method to detect shifts and tensions in the soil mass. The software is based on mathematical apparatus of Fourier transform of compact functions.
96-101 372
Abstract
The problems of energy utilization are directly related to the tasks of energy and resource saving and environmental safety. The authors propose the approach to the assessment of energy and environmental performances of railways on the bias of system analysis and exergic methodology. The exergic method is based on mass conservation law, law of conservation of energy, second law of thermodynamics.
102-107 235
Abstract
The authors study deformability of embankments on weak thawing out beddings in the areas of permafrost soils. They consider impact of thermal physic processes, which change the initial temperature field during filling of embankment, and of the process of consolidation of the foundation soil. They propose comparative computation of deformability of embankments with the use of finite element method and of their own threelayer model of bedding. The method is used for the study of a test section of railway Tommot – Yakutsk, built in difficult engineer and cryopedological conditions.
108-111 235
Abstract
The updated testing stand permits verification of design of tank cars by overpressure. The appropriate methods ensure assessment of high-cycle intense actions on the tank after welding, as well as effective control of welded joints safety and critical loads.
112-118 306
Abstract
Ecological safety demands further updating of forms and tools of scientific analysis, strengthening of data collection component for monitoring and prevention of processes in social environment and technosphere, including transportation sector. The authors assess distribution of heavy metals in the soil within right-of-way of two sections of Moscow railway, as well as the influence of braking length, curvature of the track and other factors on the level and specific character of environmental pollution.
ECONOMICS
120-125 186
Abstract
Many countries even under crisis conditions aimed their investment policy at construction financing and railway infrastructure enhancing. The analysis made by the author demonstrates the expansion of investment market, both of public and private investments. This strategy merits deeper understanding and support.
126-129 134
Abstract
The author proposes methods to substantiate reduction of ecological payments of business entities for air pollution. He argues for the following preconditions: regular instrumental control of hazardous emissions and their ground concentration at the border of sanitary protection zone, existence and functioning of ecological management system.
130-135 147
Abstract
The authors study the task of transportation of liquid fuel by combined transport. They take for the basis economically rational variants with arbitrary changes in weight and distance. Possible solutions are followed by examples and analysis of simulated results.
136-143 234
Abstract
The author, considering organizational and economic aspects of holding structures, argues that the sectorial affiliation dictates key properties of a holding company. The JSC Russian Railways acts as parent company for daughter, controlled and other companies that make part of the vertically integrated holding of national railways. The author does analysis of the first years of existence of the new form of business.
144-146 145
Abstract
New market conditions in post-soviet area change integrative sectorial dependencies. Interpenetration of the economies of neighboring countries takes different shapes but is mutually advantageous; the example of railways cooperation confirms this trend. The authors propose mathematical model of planning for companies, operating rolling stocks. The model is to increase economic efficiency of operation of railway rolling stock.
ADMINISTRATION, MANAGEMENT AND CONTROL
148-153 166
Abstract
The author studies some aspects of application of information technology at railways. He considers satellite navigation technology, concept of virtual railways on the basis of digital models of track engineering and dynamic data, automatic identification of rolling stock, spatial interpretation of a train as a dynamic spline of fixed length, control of its trafficability see its overall dimensions and the choice of the route, arrival and departure tracks at each station e t.c.
154-157 205
Abstract
The author has done a comparative analysis of the requirements of Russian State Standards (GOST) and methodology of Rational Unified Process (RUP). The RUP recommendations are more and more used in JSC Russian Railways to create software. The theme is topical, been directly related to the quality of designed management systems.
158-163 222
Abstract
The authors describe some approaches towards engineering processes of rolling stock repairs and propose modular principle based on pattern networks. They study methodology, classification, and system properties of pattern modules
164-167 183
Abstract
The authors study the issues of increasing performance of fiber-optics system of transmission via the growth of operating speed of elementary components of optoelectronics. They pay special attention to optical modulators of Mach–Zehnder. The researches on modulation characteristics permitted to formulate the requirements for the quality of fabrication of optical waveguides.
168-171 140
Abstract
The author analyzes and makes a preliminary energy audit of existing procedure of in-shed repairs of magnetic system of traction engines of electric locomotives, taking the example of Nizhneudinsk locomotive shed of Eastern Siberian railway. The author reveals main shortcomings of existing processes and proposes some possible improvements there-of.
172-174 165
Abstract
The author considers some specific properties of integration of client’s demand within mesologistics system of urban passenger transport. The author formulates approaches towards traffic management based on voluntary coordination between the traffic participants.
EDUCATION AND HRM
176-179 164
Abstract
The authors examine the system of professional training at the auto repair stations of General Motors corp. in Moscow; underline the relationship between training, knowledge shortage and growing client requirements. They estimate training courses organization and their effective output.
180-183 198
Abstract
The authors describe the principles of engineering of a computer-aided training simulator for railway station traffic controllers. The model proposes the same information and helps to take the same decisions as in real conditions. The simulator learns the ABC of the profession to a person, by simulating typical operations.
184-186 150
Abstract
The authors examine the issues of further development of physical training in high professional schools of railways. They consider fitness as a means to train personal qualities and to prepare the students for further work.
HISTORY WHEEL
188-197 216
Abstract
The chapter “On the travels of the Emperor Alexander III on south-western railways. Train crash in Borki” is from three-volume memoires of count Vitte. The events described by the author immediately followed the enthronement of the tsar.
198-203 312
Abstract
Railways from the very first moment of their existence met strategic goals of public policy, reflected social and economic needs of the society and the capacity of public powers to satisfy them. From that point of view the author assesses the role of railways in Smolensk province in the years 1920, when the country after wars and revolutions began a construction of the “new life”.
204-210 343
Abstract
Electrification of railways is an integral part of traffic process. Train weight growth, locomotive capacity enhancement cause growing need for electric traction supply, explain a permanent search for new efficient patterns of transport power engineering management.
BIBLIO-DIRECTIONS
212-214 194
Abstract
Review of the book: Pokrovskaya O. D. Engineering of Terminal Network of a Region for the Organization of Freightage: Monograph. – Moscow, TransLit ed., 2012. – 192 pp.
The reviewed book contains a concept of poly-transport services in a region based on a technology of terminals. The author refers to the techniques of estimation of parameters of a transportation and forwarding network, substantiates the algorithm of engineering of motor road and railway terminals, analyses possible variants of network approach application to Kuznetsk Basin region.
ISSN 1992-3252 (Print)
