Iss 2 (2012)
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THEORY
4-11 323
Abstract
The reliability and integrity of the railway concrete poles is one of the major problems of the traffic safety at DC and AC electrified railway tracks. The authors study load-bearing factors of their stability and propose a formula to define the overturning moment.
12-17 233
Abstract
The author proposes an approach towards integrated managing centers of delivery chains as coordination element for key actors of transportation process including all stages of freightage from the initial forwarding source through final point of its delivery to the consignee. The article concerns organization structure, organization model (4PL), objectives, tasks of such centers. The author substantiates applicability of certain models of calculation of cargo traffic and redistribution values, inertial algorithm of strategic planning.
18-25 159
Abstract
The authors study the problem of defining limit bending moment of reinforced concrete cross section, taking into account the longitudinal stress and using double line diagram of concrete and reinforcement state. A generalized approach towards computation of installations is considered as impeccable if compared to previously recommended techniques.
26-33 219
Abstract
The author considers a problem of elastic impact of a solid object on a thin-walled rod. The contact force’s characteristics are defined on the basis of Hertzian theory and the nonlinear integral equation is solved by numerical Euler method. The rod’s after-impact oscillations are estimated considering initial conditions that have been set before the given moment. Considering transverse impact on thin-walled and open profile rods the author takes into account the shear strains.
34-42 189
Abstract
The article underlines the importance of employment of taxonomy for project and program management. The actuality of reviewed problems refers to the lack of investments when a business is under crisis conditions and the limited resources in project portfolio are redistributed and sequestered.
SCIENCE AND ENGINEERING
44-49 169
Abstract
The authors study the surface of metal powder materials and internal tensions in surface layer after finishing lathing, impact of cutting tools made of different materials on the metal ceramics’ surface after finishing process, factors of structural changes and deformation processes.
50-55 164
Abstract
The atoms of foreign, alloying elements of the wheel and of the brake block participate in segregation processes caused by loading and temperature during transport vehicles’ operation. The author publishes the results of pilot researches on vibroacoustic characteristics of the brake system using respectively composite and cast-iron brake blocks.
56-61 166
Abstract
The authors describe the technique to assess operability of subgrade of the railways, publish the results of its use for the assessment of functionality of embankments at the pieces of line with the traffic of the trains with increased axial load, and propose variants of technical decisions to reinforce the embankments.
62-65 199
Abstract
The author analyzes rail imperfections, proposes its classification, and describes the results of researches and comparative studies on deformations caused by contact wearing at different track sections operated under variable conditions. The article contains recommendations based on revealed situation.
66-68 197
Abstract
The author proposes changes in design of a rapid train coach’s body and cabin. The aim is to reduce passenger boarding and drop-off time by enlarging doors surface while maintaining coach’s capacity and travel comfort.
PROSPECTS’ REFERENCES
70-75 191
Abstract
The article refers to the structure, advantages, and characteristics of multifunction models of transportation systems. The authors consider multifunction models to be a universal tool to use for different researches, using a metro line model as an example.
76-83 273
Abstract
The quality of rail welding, especially at the switches, defines efficacy, reliability, safety of freight and passenger traffic. The authors, using numerical experiments, substantiate some possible ways to improve techniques of rail aluminothermic welding. The authors underline also some inaccuracy in officially adopted technical terms of aluminothermic welding.
84-87 186
Abstract
The author describes the relative rail electric circuit built with microelectronic devices, The circuit has a function of control of freeness and good condition of the rails and has a minimum risk of dangerous failures.
88-91 152
Abstract
The author describes the engineering of a prospective technique of simulation of mode of deformation of a shaft’s slice at a random depth, which has been used to create the software “Mine” serving to accelerate the designing of underground transport installations.
92-96 192
Abstract
The authors consider the features of T-FLEX-analysis software, which make it obligatory for engineer training. They argue that some computation modules integrated with T-FLEX CAD permit adequate simulation of physical problem specification as well as realization of associative links of 3D model of a designed product and of a calculated finite-element model.
ECONOMICS
98-105 301
Abstract
The author considers focal problems of economic indices of transport activities, notably the understanding and measuring of the output, produced and commercialized by the actors in the market of freight and passenger traffic.
106-109 165
Abstract
Economic assessment of the construction of railways needs consideration of many factors, comparisons of different variants and effects. Under those conditions, the integrated approach becomes inevitable. The authors compare possibilities of commercial and budget forms of integral effect, showing capacity of investment projects.
110-113 211
Abstract
A new competitive environment has been created due to the changing balance between private owned freight cars and the rolling stock, attached to the companies run by the state. The author argues that the economic factors become more important and create incentives for innovations and new solutions not only for the infrastructure owner, which is JSC Russian railways, but for rolling stock and freight owners as well.
114-118 425
Abstract
Adequate assessment of the financial performance of a transportation company has a decisive importance for the organization itself as well as for its prospective partners. However, it is not always easy to achieve the reliable estimation, common understanding of economic categories, classes, capital backing, and investment relations. There is no common scientifically substantiated approach to the problem, therefore one can see a growing demand for engineering of rational methodology of analysis of financial performance.
ADMINISTRATION, MANAGEMENT AND CONTROL
120-123 181
Abstract
Corporate politics in the sphere of service quality management always focuses on the client. However, its specific management tools are in need for modern techniques, and new standards. The authors consider some problems of standardization of service quality management in Russian Railways holding’s companies.
124-129 170
Abstract
The fundamental role of transport for urban environment or rural settlements is undoubted. However, there are different opinions as for the areas of responsibility of federal, regional authorities and local municipalities. The author poses a problem of partner powers of local self-government, possible intermunicipal cooperation.
130-133 247
Abstract
The authors consider the problem of lack of operation rates of the quality of major repairs of the railway rolling stock and the reasons of their adoption. They discuss possibilities to create a system of management for quality assessment for repaired locomotives and cars aimed at the maintenance of their operation resources.
134-139 195
Abstract
The author proposes an algorithm of a logical network called to manage technical state of the railway cars within a range of a railway. The algorithm is based on a multi-objective optimization method. The proposed procedure makes it possible to enlarge organization resources of repair works and to increase the efficiency of rolling stock.
140-145 212
Abstract
The authors study methods of intellectual support of decision making process within interaction between the manufacturer of the wheel pairs and the system of monitoring of the life cycle of the wheels.
146-150 249
Abstract
he author proposes an approach towards a mathematical model that permits to prepare the schedule of train traffic at a single-track railway. Therefore, he describes the initial arguments and solution sequence in order to achieve the necessary rates. The author designates conditions and restrictions, which admit a certain choice of variants taking into consideration the existing priorities
SAFETY AND SECURITY
152-161 298
Abstract
The authors consider choice of possible methods to define failures and lifetime of freight cars taking into account the safety criterion. They propose classification of failures, cars’ readiness rate, operation intensity, responsibilities of different levels of the railway cars’ departments.
162-167 204
Abstract
The authors consider the problem of assessment of vibrations produced by shield machines during the construction of the shallow tunnels in urban areas. They have developed a technique to assess the peak values of velocity of soil surface spots. The authors put forward the limit values of velocity, used in foreign standards
168-177 346
Abstract
JSC VNIKTI on the demand of JSC Russian Railways has conducted fundamental researches and tests on the factors, which could affect the empty railway cars stability if they are exposed to the risk of derailment. Large-scale trials, running dynamics inspections, computer simulation have been held, particularly to force the cars away by longitudinal forces, to test the impact of the cars on the track e t.c. The authors devote the article to the results of this study.
178-181 174
Abstract
The authors examine techniques to protect airports and air flights against illegal acts, assess the system of three-level checking of passengers proposed by international organizations, and new biometric identifiers, serving to enforce aviation security measures and to facilitate preflight procedures.
182-185 199
Abstract
The author examines a possible economic and mathematical model of the safety management within the railways. Safety function means increasing safety of rolling stock and installations, financial resources and their distribution.
186-190 212
Abstract
The authors propose newly designed powder-gas filters based on granular layers with connected structure, describe the results of testing of new filtering module, as well as a mathematical model to use in order to create and operate ecological devices of railway car repairing works.
HISTORY WHEEL
192-203 180
Abstract
N.Benardos left a brilliant trace in the history of Russian electric engineering. In spite of the fact that he had never graduated from any engineer faculty he made more than 200 inventions. He designed steamships and other vehicles, made a great contribution to mechanical engineering and railway industry. But now he is mostly known as a Russian inventor of carbon arc welding.
204-210 324
Abstract
The author depicts evolution of railway stations, its birth, acquisition of functions and image, examines cityforming sense, influence on the structure of historical downtowns, on the architectural style and urban planning, studies the place of stations in the urban transportation environment.
BIBLIO-DIRECTIONS
212-214 167
Abstract
A review of the book: M. Amirov, S. Amirov. Uniform transport system. Handbook. – Moscow, KnoRus, 2012. – 184 pp. M.Amirov, S.Amirov. Uniform transport system. Handbook. – Moscow, KnoRus, 2012. – 184 pp.
The key audiences for the reviewed textbook are the students of high vocational schools. The handbook includes the chapters devoted to modern kinds of transportation, transport economics, infrastructure, business cooperation, outlooks of development within the framework of the united transport complex of the Russian Federation. The authors propose a diversity of statistics, test questions related to relevant disciplines of training. They consider the book to be particularly interesting for the students of transport vocational schools and colleges. Nevertheless the reviewer on the basis of comparative analysis argues that the other textbook meets the interests of the railway transport students better.
ISSN 1992-3252 (Print)
