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Abstract
The paper based on the analysis of the working conditions of railway transport shows that, ceteris paribus, an increase in actual durability and mean time before failure of rolling stock units is obtained through maintenance of wheelsets, especially during logistic processes on nonmechanized humps. One of the main causes for the service life decrease of wheelsets is brake damage. To eliminate such brake damage on highways, on-board braking dis-tance regulators mounted on the locomotive are used. In the hump yards, using such systems is not possible, since under marshalling, cars are detached from the locomotive. In this regard, an industrial challenge turns up to design a similar in purpose braking distance regulator for humps through skidding. To solve this problem, we developed a method of controlling the speed of cars to be sorted, which complements the widely used technology of the shoe braking and avoids the formation of one-way sliders. The paper presents a skid adjuster, which excludes brake damage to the rolling stock wheels by the slides on the humps using the shoe braking techniques. The motion equation of the rolling stock equipped with a skid adjuster on the hump tracks is developed. In the result of this study, an equation of car motion in the system of “rolling stock Hughes regulator way” allowing to enter the working elements of Hughes controller to an existing and debugged algorithm of any slides with minimal change it.
Highlights
For Russia, railway transport plays one of the key and strategic parts, as it is the main transport artery connecting all its regions
An im-provement of the actual durability and mean time before failure of the crews is achieved through the maintenance of the rolling stock wheels under actual operating conditions including the logistic processes in the hump yards [3,5,6]
The resulting equation is a complete equation of the rolling stock movement for these conditions, and, using it, it is possible to calculate the magnitude of the driving force and resistance forces at any stage of the movement with account for the design parameters of the modules of the antislide safety system
Summary
For Russia, railway transport plays one of the key and strategic parts, as it is the main transport artery connecting all its regions. Application of this system is not possible, since under marshalling, cars are detached from the locomotive In this regard, an industrial challenge is encountered – to design a similar in purpose braking distance adjuster for humps through skidding. A major drawback of the skate braking technique is the possibility of thermomechanical damage to the surface of the wheels, which, on the one hand, causes losses to downtime of cars during the inspection and change of wheelsets, and on the other hand, the expenditures on restoring or manufacturing of new wheels. Thermomechanical damage to the wheels on the humps is called one-sided slides The elimination of this negative phenomenon complete with the minimum material and capital intensity of the skate braking principle offers a challenge for saving large material resources of the industry [8]
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