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2018 4

Main subjects

  • Transport

  • Economic sciences

  • Computer science and control

  • Construction and architecture

  • Safety of human activity

  

Abstracts

A.I. Bykov, V.N. Zhdanov, T.A. Frolova, O.Yu. Krivich
Optimization of car-wheel turning machine choice

The article notes the importance of the car-wheel turning machine fleet replacement at the railway rolling stock repair enterprises. The technical data of machines used for the car wheelset turning are given. The optimization technique of car-wheel turning machine choice with regard for economic expediency is presented.
Keywords: wheelset, car-wheel turning machine, machine capacity, economic efficiency

N.V. Bugreev
Optimization model of reliability parameters for float time systems

The author examines the mathematical model of extremum problem solution of the double-ended estimate of functionals being the key reliability indices of float time system reliability. It indicates that the limit distributions the I(F) integral extremums are achieved are the step distribution functions with a limited number of points of the increase.
Keywords: reliability indices, float time systems, double-ended estimate of functionals

A.A. Loktev, P.V. Sychev
Prediction of occurrence of deviations from railway track maintenance standards before the fault affecting the transportation process

The models and algorithms for rail track fault prediction according to the indications of the track gauge car are presented to prevent the adverse effect on the transportation process, in particular, the speed limit on the railway section.
Keywords: prediction, adaptive model, trend, transportation process, maintenance standards, railway track

I.M. Basyrov
Transport product realization of the container operator company concerning differentiated lengths of block-trains

The approach to the improvement of the setting system of container transportation operation is formulated. Along with full-compound container trains, the author proposes to form container block-trains of differentiated ("floating") lengths in a technologically reasonable traffic interval. The cost-effectiveness calculations of the block train with the length of 53, 55, 57, and 58 conventional cars are given. It is noted that the operation of transportation with the shortened block trains results in a relative saving of conditionally constant ("independent") transportation expenses.
Keywords: container block-trains, differentiated lengths of block-trains, container operator company, conditionally constant transportation expenses, fare, freight carrier

I.V. Chepurchenko, D.Ya. Nosyrev, I.Yu. Kroshechkina
Operational reliability gondola car body design analysis

The operational failures in the gondola car design are of great importance for the train operation safety, so this article presents the analysis and calculation results of the reliability indices of gondola cars after planned repairs. These results will allow the maintenance and repair enterprises to predict and reduce the percentage of failures.
Keywords: gondola car body, reliability, failure, statistics

V.N. Filippov, I.V. Plotnikov, K.I., Kadomtsev
On a way of safety growth of the eighth class dangerous freight transportation

The safety growth variant of the dangerous freight transportation at the expense of the developed settlement complex and the mathematical model allowing to analyze the tension in each layer of the composite material of the tank-container is considered.
Keywords: tank-container, composite materials, finite element method, mode of anisotropic shell deformation

V.A. Bugreev, A.P. Chekhov, V.I. Mel'nikov, P.A. Chekhov
Checking calculation of electric machine installation elements

The design features of contactless DC engines on the principle of meeting the power requirements for all elements are considered.
Keywords: contactless DC engine, electric machine installation

E.B. Kulikova, O.N. Madyar
Multiple-factor estimation of additional stop possibility of long-distance passenger train in suburban area of transport nodal point

The article is devoted to the effective passenger traffic operation in the suburban-urban area of transport nodal points. The authors suggest the multiple-factor estimation procedure of the additional stop possibility of long-distance passenger trains.
Keywords: multiple-factor estimation, long-distance passenger train, suburban area, transport nodal point

L.V. Shkurina, N.E. Karachun
Comprehensive approach to impact account of probabilistic macro-and microeconomic factors in financial effect formation of transport company operation

The methods estimating the impact of a set of factors of probabilistic nature on the financial effect of the company operation in the freight transportation market are considered. The authors developed the risk management algorithm and the model of financial effect formation of the transport company operation.
Keywords: financial effect, risk factors, freight transportation market, transport company

D.A. Loktev, V.A. Kochnev, A.A. Loktev
Determining of dimensions of vehicles and their traffic area position in video monitoring system

This research modifies the algorithms and computing circuits of the image processing of the moving objects which can be realized in an automatic recognition and control system capable of real-time detection of vehicles on the public roads by the determining of their contour line and classify the crews by dimensions under different shooting conditions and different scene background.
Keywords: vehicle type, object image, background image, image processing, background diminution

V.G. Sidorenko, M.A. Kulagin
Qualification of drivers as reliability improvement factor of electric rolling stock operation

The modern methods of data processing are shown in the task of activity analysis of locomotive crews as the leading reliability factor of the electric rolling stock operation. The key task is to find dependencies in the data and to build algorithms of the violation probability of locomotive crews. As a result of the conducted research, enough good results were obtained both on the training and test samples.
Keywords: machine learning, neural network, artificial intelligence, probability, random forest, gradient boosting

E.V. Drabkina, Y.N. Pavlov
Choice technique of power installations for transport infrastructure facilities

The development prospects of transport infrastructure are considered, and the techniques the choice and justification of types of power installations for these facilities are proposed.
Keywords: distributed (small) energy, mini-heat electric power station, life cycle

V.I. Apattsev, V.Yu. Gorelik, R.R. Kazaryan, B.A. Lyovin
Some aspects of non-demountable and demountable systems of finishing of buildings, constructions, and their internal premises

The demountable connection differs from non-demountable: it allows to divide into the primary components using the advance known technology, to identify the defective parts and replace them with good quality ones, to add or remove any components (to create a new modernized arrangement of elements providing the same or the upgraded connection function); it requires the periodic inspection and maintenance, as the climatic conditions (temperature drop, pressure change, wind load) and the connection operation specifics result the derating of its mechanical characteristics, the external appearance quality level and the operation reliability (the interference weakening of threaded connections, the density reducing of flange connections, the deterioration of sealing elements); it is forbidden to build in, so demountable connections are mounted so that there is the access to them.
Keywords: non-demountable (one-piece, precast-monolithic) and demountable (detachable) methods of connection; engineering processes of connections; reuse of separate components of connection as secondary material (recycling); demolition of panel five-storey buildings of the first industrial series; compression (clamping) connections; distinctive properties of demountable connections

I.V. Martynyuk, A.I. Shevchenko
Modern approaches to a problem of safety and stability of transportation process in emergencies

The analysis of some aspects of the problem of safety and stability of railway transportation process in emergencies is submitted. The authors suggest the classification of infrastructure objects taking into account the degree of damage impact on the safety and stability of transportations. An approximate scale of damage levels of infrastructure objects is proposed.
Keywords: safety, transportation process, stability, scale of stability levels, emergencies

V.M. Ponomarev, V.I. Zhukov, A.V. Volkov, L.V. Grishina
Comprehensive safety on railway crossings

The problematic issues are examined. The option of improving the scheme of turning on of protecting traffic lights using the control units of the vehicle presence, and additional means to ensure the braking of vehicles in the safe area are suggested.
Keywords: railway crossing, warning system, control unit, human factor, response time

V.V. Bykadorov, E.I. Ivanova, O.V. Voronov
To the question of environmental pollution processes modeling from the locomotive power system operation

The fundamentals of physical, chemical, and mechanical processes of air pollution with the emissions of harmful substances by locomotive power plants are considered.
Keywords: environment, exhaust gases, engine heat balance, nitrogen oxides, soot in diesel

V.G. Popov, F.I. Sukhov, Yu.K. Bolandova
Accidental risk assessment of train movement consequently the impact of natural emergencies in the environment

The article reveals the problem of emergency risk forecasting consequently the impact of natural emergencies concerning railway transport. The authors suggest using the rated law of Erlang to determine the probability of the effect of emergencies on the socio-technical system of railway transport.
Keywords: accidental risk, emergency, emergencies, railway transport, Erlang distribution