Open AccessThe motion of the wagon on the marshalling hump under the impact of air environment and tailwind
Author(s) -
Turanov Habibulla,
Timuhina Elena,
Andrey Alexandrovich Gordienko
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/403/1/012201
Subject(s) - marshalling , aerodynamics , normative , movement (music) , motion (physics) , track (disk drive) , air movement , sorting , computer science , engineering , operations research , aeronautics , mechanical engineering , aerospace engineering , meteorology , law , physics , political science , artificial intelligence , acoustics , algorithm , programming language
The effect of the tailwind on the wagon when it is rolling down from the hump is discussed. The movement of the wagon on the profile of the marshalling hump is studied. The article applies the theorem on the addition of velocities in complex motion in vector form. Errors in determining the specific resistance to the movement of the car from the air and wind arising from empirical relationships taking into account the aerodynamic characteristics of the cars are mathematically substantiated. The results of the research can be used in the processing of the normative-technical document on the design of hump devices on railways and making adjustments to the dynamics of rolling the wagon in textbooks for universities of railway transport. The results of this study prove the need to revise the practical significance of the formula for finding the specific resistance to the movement of the car from the air and wind in the normative-technical document “Rules and regulations for the design of sorting devices on the railways track gauge 1 520 mm ".