SIMULATION OF REGULATING BRAKING MODE OF LONG TRAIN
Abstract
From the theory of train longitudinal dynamics it is known that with an increase in length and weight of a train, longitudinal forces grow. In addition, in the course of train movement in areas of rolling grade of the track to perturbations from kinks of the profile, perturbations associated with motion control can be imposed. Adverse overlay can lead to the emergence of longitudinal forces, hazardous under the terms of strength and stability of cars against derailments due to squeezing or pulling [1, 2]. The most unfavorable in this sense is the mode of regulating braking by air brakes, because then rate of change of brake forces remains unregulated. Therefore, when assessing the greatest forces in the train, and even more so in a long train, it is necessary to first take into consideration given control mode – pneumatic braking.
The authors use mathematical and engineering methods, mathematical simulation. In line with the study of longitudinal vibrations of a train a discrete multibody model of trains as a system of rigid bodies is considered. With its help regulating braking mode by air brakes is calculated, which allows to ensure that maximum longitudinal forces in the train do not exceed the level allowed under the terms of traffic safety.
About the Authors
O. E. Pudovikov
Moscow State University of Railway Engineering (MIIT), Moscow
Russian Federation
D. Sc. (Eng.), associate professor, head of the department of Electric Trains and Locomotives
Russian Federation
D. Sc. (Eng.), associate professor, head of the department of Electric Trains and Locomotives
S. A. Murov
Moscow State University of Railway Engineering (MIIT), Moscow
Russian Federation
engineer, Ph. D. student at the department of Electric Trains and Locomotives
Russian Federation
engineer, Ph. D. student at the department of Electric Trains and Locomotives
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Review
For citations:
Pudovikov O.E., Murov S.A. SIMULATION OF REGULATING BRAKING MODE OF LONG TRAIN. World of Transport and Transportation. 2015;13(2 (57)):28-33.
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