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2017 ¹1 | |
Main subjects
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AbstractsA.S. Kosmodamiansky, N.N. Strekalov, A.A. Pugachev
The urgency of regulating of temperature variations of force semiconductor devices of autonomous voltage inverters is shown. The possibilities of variation reduction are considered. The control system of temperature variations applying the frequency of switching as the control action and working on departure from the given value of variations is offered. The simulation results are given in MATLAB.
N.L. Mikhalchuk, N.S. Nazarov, M.Yu. Kapustin
The transition to axle-by-axle control with separate excitation allows to maintain optimum rigidity of the traction characteristic of each traction electric motor. Such regulation in case of a lack of information about the control object is possible with the implementation of the adaptive control system with identification devices of identification and the electric semiconductor variator.
V.N. Filippov, V.G. Popov, V.M. Ponomarev, Yu.N. Shebeko, S.V. Bespalko
The scenarios of emergency with tank wagons introduced in regulatory documentation are developed. Results of long-term researches of durability, stability, thermal processes, dynamic loading in case of wrecks are explained. The safeguarding equipment in case of accidents are created. A number of models of tank wagons is made for dangerous and especially dangerous freight.
S.V. Bulatov
The analysis of the current state and problems of the passenger motor transport for the purpose of identification of number of buses (minibuses) operated with excess of the normalized service life is carried out. Thereby there are the risk and the initiation of failures, and also the need for spare parts that requires the optimal solution of tasks of material logistics.
V.I. Apattsev, I.M. Basyrov
The problem of optimum allocation of elements of transport and logistic infrastructure is considered. The basic approaches to the problem solution of the location choice of logistic infrastructure objects; theoretical questions of an assessment of influence of the revealed factors of the market environment on the location of the logistic centers are analysed. The method of implementation of the combined analysis based on the use of Ishikawa diagrams is offered.
V.A. Bugreev, I.N. Markin
The assessment of reliability indicators of systems with float time of continuous use in the conditions of the minimum of a priori information on partition laws of random variables is offered, and that corresponds to a large number of real situations. In particular, in case of only the initial moments of distribution functions of random variables are known, and the type of these functions is random.
V.K. Musaev, O.S. Yudaeva, L.E. Shvartsburg, V.A. Aksyonov, S.A. Khachatryan
The problems of safety of complex technical systems are considered. The analysis of constructive solutions of the technical systems of different function connected with their survivability is made.
A.S. Veselova
Questions of application of methodologies of ALARP and URRAN for the integrated assessment of risks of unreliable operation of railway automatic equipment are examined. The example of a matrix of risks connected with the level of operation reliability of railway automation object is made, the determination sequence of norms of operation indicators of railway automation objects and synthesis of the risk matrix are given.
A.A. Alferova
The economic losses of freight owners resulting from freight delivery untimely are investigated. The amount of their compensation when receiving the fine for delay of freight delivery from transport company is evaluated.
D.S. Tanifa
The problem of replacement of outdated technologies on more effective meeting to modernity realities is considered. The assessment of the overall economic efficiency of the rolling stock replacement on the railway transport is carried out. The comparison of several locomotives on main types of expenses is executed for an example.
T.V. Boldyreva, I.M. Kublin, K.B. Ladyzhensky
The principal trends connected with marketing are revealed and the need of use of marketing tools for tariff policy is proved. Questions of the organization of tariff policy of rail freight transportation on the principles of marketing are considered. It is noted that the flexible tariff policy is the effective instrument of attraction of additional traffic volumes.
V.P. Anan'ev, V.N. Alekseev, O.V. Golovina
The problem of stressed state of the elastic isotropic plane is considered. The expressions for the components of a complex vector of conveyances for the problem of the elasticity theory are received with the method of complex potentials.
A.A. Loktev, V.P. Sychyov, O.I. Poddaeva, A.V. Potapov, G.N. Talashkin
For the effective organization of road traffic and an exception of traffic blockage on city streets it is offered to develop the project the bridge-tunnel for the passing of cars. The presented mathematical model of the bridge-tunnel allows to define all necessary kinematic and dynamic characteristics of design elements and to begin the offered perspective structural design.
V.K. Musaev, O.S. Yudaeva, L.E. Shvartsburg, V.A. Aksyonov, S.A. Khachatryan
Currently many organizations specialize not only in projects on strengthening of the bases and the foundations, but also create new technologies for reinforcing of construction objects from natural, anthropogenic and environmental extreme influences. The analysis of the cause of accidents of building sites is considered.
G.V. Barinova, L.A. Astashkina
Aspects of traffic safety on transport, human activity in the control system, the role of human factor in the "person - vehicle - social environment" system, problems of decrease in probability of incorrect decision making in the course of working as a result of influence of external psychological and physiological factors on the human operator are considered.
A.V. Shvetsov
The trend analysis and the content of modern terrorist threats in the underground is carried out. The model of underground protection is offered. This model makes possible the problem solving of security level assessment of underground objects from terrorist threats.
V.M. Ponomarev, D.N. Vasil'eva
The assessment technique of quality of made capital repair in terms of determination of equivalent sound level in rolling stock cabs is given.
S.V. Lyukhanova, D.V. Gontar
The transport safety elements are defined from the point of view of an integrated approach. The creation of the integrated control system of transport safety is offered. The structural components of the integrated control system of transport safety are given on the example of JSC "Russian Railway".
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