A method for calculating normal and tangential force factors in braking devices with a pincer mechanism while an electric train operating on curve track sections
https://doi.org/10.46973/0201-727X_2026_1_110
Abstract
Increasing the speed of rolling stock to transport passenger traffic imposes additional responsibility on safety systems. Calculation methods for modern rolling stock braking equipment average the technical characteristics of the braking system and do not take into account movement on curved track sections, when the effectiveness of the braking devices is minimal. The conducted research makes it possible to adjust the calculation process for rolling stock braking equipment for areas with difficult terrain. By considering these characteristics of the shift in pressure centers in the friction units, it is possible to take into account the uneven contribution of each brake pad of disc-and-shoe brakes to the overall braking force of the entire rolling stock. The obtained dependences make it possible to account for the influence of bogie suspension characteristics on the magnitude of the unevenness of normal and tangential forces for both the wagon as a whole and for each individual wheelset.
Based on the conducted research, two possible solutions to the identified problem can be formulated: increasing the rigidity of the carriage suspension, which will lead to a deterioration in passenger transportation comfort, and improving the design of braking devices, which will allow to equalize normal forces over the area of the brake pads and reduce the uneven contribution of each pad of the rolling stock wheelsets.
About the Authors
S. N. Korzhov
Rostov State Transport University (RSTU), Chair “Life Safety”
Russian Federation
Russian Federation
Korzhov Sergey Nikolaevich, Postgraduate Student
P. A. Polyakov
Naberezhnye Chelny Institute of Kazan Federal University (NChI KFU), Chair “Mechanics and Engineering”
Russian Federation
Russian Federation
Polyakov Pavel Alexandrovich , Doctor of Engineering Sciences, Associate Professor, Head of the Chair
I. A. Yaitskov
Rostov State Transport University (RSTU), Chair “Car and Car Facilities”
Russian Federation
Russian Federation
Yaitskov Ivan Anatolievich , Doctor of Engineering Sciences, Professor, Dean of the Electromechanical Department
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Review
For citations:
Korzhov S.N., Polyakov P.A., Yaitskov I.A. A method for calculating normal and tangential force factors in braking devices with a pincer mechanism while an electric train operating on curve track sections. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2026;(1):110-120. (In Russ.) https://doi.org/10.46973/0201-727X_2026_1_110
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