Abstract
The article deals with a method of complex calculation of rational structural parameters of humps at classification yards. Unlike existing methods, this method allows an implementation of the technology of guided gravity regulation of the cut speed by applying a special layout and profile arrangement. The authors believe that it will decrease the maintenance costs to refund damaged car and cargo, costs on electricity needed for the cut speed regulation and some extra charges due to demurrages caused by waiting for breaking-up at arrival yards.
Highlights
Due to certain trends in the world energy resources market and severe competition in transportation, the research of optimization of rail transportation charges is urgent
In article [1], the authors pay an attention to the fact that one of the components considerably influencing the total costs of transportation are the car processing costs on humps
According to [1], a lot of factors influence the processing costs, among which are the costs of depreciation, spare parts and maintenance of cut speed regulators
Summary
Due to certain trends in the world energy resources market and severe competition in transportation, the research of optimization of rail transportation charges is urgent. Over a long period of time a lot of scientists have paid their attention to an improved layout and profile structure of a hump, cut rolling speed regulators, systems of automated hump technological processes and cut braking modes to increase the breaking-up efficiency [2,3,4,5,6,7]. Research [8] implies that there are some factors of the sorting process substantially influencing the breaking-up efficiency; thought they are rather difficult to consider, forecast or formalize. The operational condition of cut rolling speed regulators and automation devices, the degree of consideration and presentation method of a random nature, the state of wheelsets and other factors are among them. The height and longitudinal profile of the arrangement provide, firstly, the rolling of slow light car (SL) in unfavourable winter conditions from HC to DP, the most difficult track in terms of resistance, and, secondly, sufficient intervals at dividing switching points in the SL-FH link (where FH- fast heavy car)
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