Mathematical model for defining rational constructional technological parameters of marshalling equipment used during gravitational target braking of retarders

Abstract

The article presents the mathematical model for defining rational constructional and technological parameters of marshalling equipment with the application of gravitational target car braking. In contrast to the existing ones, the realization of the given model will allow a complex approach to defining the height and longitudinal profile of the hump yard for applying the technology of gravitational target regulation of car speed. This construction of hump yards is characterized by a special construction of plan and longitudinal profile. The authors believe that it will contribute to reducing operational expenses on compensation of expenditure on damaging cars and freight, electricity, required for regulating the speed of retarders, and to reducing extra costs connected with stock lay-over in the pool waiting for breaking-up.