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Title of the article METHODOLOGY FOR DETERMINING THE COEFFICIENTS OF AERODYNAMIC DRAG AND ROLLING RESISTANCE OF ROAD TRAIN TIRES IN COASTING MODE
Authors

KARABTSEV Vladimir S., Ph. D. in Eng., Assoc. Prof., Head of Design and Research Calculations Department, KAMAZ PTC, Naberezhnye Chelny, Republic of Tatarstan, Russian Federation; Associate Professor of the Information Systems Department, Naberezhnye Chelny Institute of Kazan Federal University, Naberezhnye Chelny, Republic of Tatarstan, Russian Federation; This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

In the section MECHANICS OF MOBILE MACHINES
Year 2024
Issue 3(68)
Pages 21–27
Type of article RAR
Index UDK 629.113:539.621
DOI https://doi.org/10.46864/1995-0470-2024-3-68-21-27
Abstract To analyze the fuel balance and optimize the fuel efficiency indicators of wheeled vehicles (WVs) using mathematical models, developers require a large number of design parameters as input data. Among them are losses in the transmission, aerodynamic drag of the WVs and tire rolling resistance. Many methods are developed to investigate these parameters, both under bench test and road test conditions. Many of them are based on the analysis of decelerations in the process of WVs coasting in two or even three weight conditions. Therefore, in order to save time and money for the preparation and performance of studies on the assessment of resistance forces, a methodology is proposed which is based on the analysis of the results of WVs tests by the coasting method only in one weight state, at full mass.
Keywords wheeled vehicle, road train, coasting, tire rolling resistance, aerodynamic drag, force balance
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