Yu.M. In'kov, A.S. Kosmodamiansky, G.A. Fedyaeva, V.P. Feoktistov
Shunting work at stations should be carried out using battery-trolley electric locomotives. The concept of such electric locomotive is proved, and its operation efficiency on the basis of diesel traction electric motors and iron-nickel accumulators is shown. Operating experience of VL26M electric locomotives is considered.
Kh.T. Turanov, M.V. Korneev, A.A. Gordiyenko
Results of the conducted researches proved the stability rating possibility of freight or the car with freight relative to one of bearing at a variation of tension of preliminary wire twist of fastenings. It is established that, unlike specification technique, the stability rating of freight and the car with freight needs to be carried out taking into account the tension of preliminary wire twist of fastenings.
A.V. Orlov, V.V. Grishankin
The coupling derangement of locomotive wheel pairs in the form of skids is a frequent phenomenon and, as a result of a set of negative consequence, undesirable. The control method based on pattern identification of operation condition of locomotive wheel pairs by means of artificial neural networks is offered and the results of certainty value assessment of the coupling derangement of wheel pairs are given.
N.N. Sidorova, V.A. Sharov, A.Yu. Malyutin, D.V. Nazarov
The reasons of the raised expense on energy consumption in passenger traffic are considered. The appropriateness of transition to the accounting system of the specific consumption of the electric power including the density of passenger traffic in passenger/km is shown. The analysis of stage-by-stage modernization of electric trains is carried out. Calculation of use of asynchronous traction engines with pulse control that makes possible to liquidate starting losses is given and allows to recuperate energy to the speed of 6-7 km/h.
V.P. Smirnov, O.O. Sokolov
It is established that growth of current load causes the essential decrease in reliability of traction machine, especially in winter operating period, because of closure of air outlet holes of the ventilating air from the traction machine. The influence of contact line voltage on the reliability of traction electric machines is shown.
A.A. Loktev, A.V. Sychyova
The new realization of the determination method of the kinematic and power quantities characterizing the behavior of railway track elements under the action of dynamic load is considered. The offered technique is capable to simplify the procedure of track diagnostics and allows to determine the displacement and tension near given points.
V.I. Apattsev, A.V. Podorozhkina, V.O. Rusakov
The problem of the organization of the heavy freight traffic on the double-track electrified sections is considered. The fields of efficiency, inefficiency, and partial efficiency of the heavy freight traffic depending on intervals between consecutive trains are established. The calculation formula is developed to determine the percentage of heavy freight trains in the total train flow at which the maximum freight capacity of double-track railway sections is reached.
The influence of track infrastructure condition on the organization of heavy freight traffic is considered. The conditions allowing to establish the efficiency or the inefficiency of the heavy freight traffic depending on characteristics of warnings of speed limit of train operation are developed. The technique of a choice of the optimum traffic condition of freight trains on the sections included in the operation polygon of heavy freight trains is offered.
The most damaged components of traction electric machines of electric trains are armature winding and additional poles. It is caused by the elevated heating temperature because of increase in traverse speed, intensive application of electric braking and decrease in intensity of ventilation of traction machines during the winter operating period.
V.A. Bugreev, I.N. Markin
The selection of the efficiency indicator of maintenance of complex technical system is realized. The comparison of indicators is carried out. The principles the versatility indicator of maintenance efficiency has to correspond are defined.
K.V. Shchurin, N.A. Morozov, Yu.L. Vlasov
The dynamic model of collision of vehicles through an external air bag is considered. Dynamic characteristics of vehicles at collision are defined. The measures for reduction of the dynamic load acting on the colliding objects are developed.
E.Yu. Lipatov, A.A. Gorshenin
Classification of the conditions of the vehicle driver resulting in decrease in work capacity is given and also the possible reasons of the road accidents caused by these conditions are considered. The statistics of accidents connected with low work capacity of the driver and the danger of driving in such condition are shown.
V.A. Aksyonov, O.S. Yudayeva, S.V. Demidov, A.S. Gladarenko, O.G. Egorova
Carrying out full-scale firing tests of passenger cars the assessment of potential biological danger of products of thermal decomposition of polymer-containing of constructional and finishing materials that allows to consider effect of a summation and potentiation of the allocated toxic chemicals is made.
V.G. Struchalin, V.M. Ponomaryov, V.Yu. Navtsenya
The assessment of possibility of emergency situations during the operation of tanks with flammable liquids is carried out. It is indicated the need of strengthening of measures for the prevention of emergency situations caused by the ignition of vapors of flammable liquids.
Safety philosophy questions in a philosophical perspective are examined. The introduction of safety philosophy perspective to a social and philosophical field allows on the one part abstract-theoretical approach to the understanding of complex and essential problems of safety in historical and logical, ontological and anthropological aspects, and on the other part, to enrich theoretical approaches to this phenomenon with empirical data.
The disability phenomenon from the point of view of the philosophical principle of determinism is analyzed. Subdividing the set of determinant on objective and subjective the author examines the anthropogenic reasons of disability in the plane of causal determination, and also analyzes the subjective causes and effects of transport accidents promoting the growth of disability.
V.M. Medvedeva, E.N. Pirogov, V.A. Semenovykh
The technology of potable water purification with the use of oxidation methods is considered. The substantiation of application efficiency of ozonization to this effect allowing to provide deep water purification from a wide range of pollution is given.
Substantiating the economic efficiency of the contrailer terminal construction on the basis of the existing railway stations the capital expenditure for construction of the contrailer terminal and additional average annual operating costs are considered as expenses, and as revenues - the profit from providing services in carrying out of initial and final operations with contrailers by the station and the terminal.
The discrete model of estimated asymmetry parameter of motion of the reverse traction current when applying of sand on the wheel-rail contact is offered. The result of the researches described in this article is the definition of probability distribution function of asymmetry parameter. It is shown what parameters have an influence on distribution of asymmetry parameter of motion of the reverse traction current. The example of determination of asymmetry parameter at the set-up parameters is given. Some recommendations for minimization of this phenomenon on devices of railway automatics are made.
A.S. Serebryakov, E.V. Novikov, D.A. Semyonov
The results of simulation modeling of processes in "the thyristor regulator - nonlinear inductive-capacitive load" system are given. It is shown that in such system there is a specific voltage resonance called thyroresonance. Quantitative characteristics of this phenomenon are provided.