The establishment of the average weight of freight trains depending on the weight rate with a limited length of station tracks
https://doi.org/10.52170/1815-9265_2023_65_20
Abstract
Since the creation of rail transport, one of the main ways to master the increasing volume of traffic has been a systematic increase in the average weight of freight trains. This value is limited by the useful length of the station tracks, the power of train locomotives, and the structure of cargo flows showing the weight of cars with cargo per one linear meter of the train. Given these conditions, for a long time, an increase in the average weight of freight trains was obtained by lengthening station tracks, introducing four-axle wagons with increased load capacity (compared to two-axle ones), replacing the screw coupling of wagons, generally accepted at that time, with automatic coupling. The article establishes the influence of the useful length of station tracks on the average weight of freight train trains depending on the structure of freight flows of the main railway line; actual value of average weight of freight trains is set taking into account different weight standards. The value of the weight norm is determined, at which, in case of restrictions on the useful length of the station tracks, the use of power of train locomotives deteriorates. Power, and accordingly, the type of train locomotives varies depending on the average weight of the train.
The presence of cargo flows not only from heavy, but also from light cargoes creates the possibility of driving freight trains with low-power locomotives. For driving heavy trains, more powerful two and three-section locomotives, multiple traction, can be used.
The increase in the number of low-weight trains allows, by reducing the time spent on accumulation, as well as downtime of ready-to-leave trains waiting for train locomotives during a period of decline in traffic, to reduce the fleet of cars and their downtime at sorting stations. This will ensure stability in the operation of junction points by ensuring more uniform operation of main railway lines.
About the Authors
A. V. Dmitrenko
Siberian Transport University
Russian Federation
Russian Federation
Alexey V. Dmitrenko – Professor of the Railway Stations and Junctions Department, Doctor of Engineering
Novosibirsk
L. I. Pushkareva
Siberian Transport University
Russian Federation
Russian Federation
Larisa I. Pushkareva – Senior Lecturer of the Railway Stations and Junctions Department
Novosibirsk
E. A. Larchenko
Trans-Baikal Institute of Railway Transport – a branch of the Irkutsk State Transport University
Russian Federation
Russian Federation
Elena A. Larchenko – Leading Engineer of the Research and Innovation Center of the Trans-Baikal Institute of Railway Transport
Chita
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Review
For citations:
Dmitrenko A.V., Pushkareva L.I., Larchenko E.A. The establishment of the average weight of freight trains depending on the weight rate with a limited length of station tracks. Bulletin of Siberian State University of Transport. 2023;(2):20-28. (In Russ.) https://doi.org/10.52170/1815-9265_2023_65_20
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