Browsing by Author "Titova, Anastasiia"
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Item Determination of the Optimal Cars Exit Speeds from the Retarders on Sorting Humps(KTU, Lithuania, 2023) Kozachenko, Dmytro M.; Grevtsov, Serhii V.; Titova, AnastasiiaENG: Sorting humps are the main technical means providing the breaking- and making-up of freight trains on marshalling yards. Automation of sorting process by implementing microprocessor control systems is the main direction of increasing hump yard capacity, enhancement of safety in trains breaking-up, improvement of working conditions on hump yards. The purpose of theresearch is determination of the optimal cars exit speeds from the retarders on sorting humps. Its solution is significantly complicated because of the uncertainty of cars rolling resistance coefficient, wind velocity and direction, retarder control errors. The research is performed using the methods of the simulation modelling, mathematical statistics and direct optimization methods. The originality of the work is related to the solution of the problem of choosing cars exit speeds from the retarders in a stochastic formulation. The practical value of the work lies in the fact that the proposed method allows improving the quality of sorting process as a whole by improving the software of microprocessor control systems for automatic humping, rather than by increasing their technical facilities, which as a result will reduce the cost of their construction and operation.