Methodology for Assessing Tractor Traction Properties with Instability of Coupling Weight

Anatoliy Lebedev, Mykhailo Shuliak, Stanislav Khalin, Sergei Lebedev, Katarzyna Szwedziak (), Krzysztof Lejman, Gniewko Niedbała () and Tomasz Łusiak
Additional contact information
Anatoliy Lebedev: Agroengineering Department, Sumy National Agrarian University, 160 Herasyma Kondratieva Street, 4000 Sumy, Ukraine
Mykhailo Shuliak: Agroengineering Department, Sumy National Agrarian University, 160 Herasyma Kondratieva Street, 4000 Sumy, Ukraine
Stanislav Khalin: Leonid Pogorilyy Ukrainian Scientific Research Institute, 08654 Doslidnitske, Ukraine
Sergei Lebedev: Leonid Pogorilyy Ukrainian Scientific Research Institute, 08654 Doslidnitske, Ukraine
Katarzyna Szwedziak: Institute of Agricultural Engineering, Wrocław University of Environmental and Life Sciences, 37b Chełmońskiego Street, 51-630 Wrocław, Poland
Krzysztof Lejman: Institute of Agricultural Engineering, Wrocław University of Environmental and Life Sciences, 37b Chełmońskiego Street, 51-630 Wrocław, Poland
Gniewko Niedbała: Department of Biosystems Engineering, Faculty of Environmental and Mechanical Engineering, Poznań University of Life Sciences, Wojska Polskiego 50, 60-627 Poznań, Poland
Tomasz Łusiak: Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Lublin University of Technology, Nadbystrzycka 38 D, 20-618 Lublin, Poland

Agriculture, 2023, vol. 13, issue 5, 1-11

Abstract: The purpose of the study is to increase the efficiency of using the tractor hitch weight in traction mode by reducing the uneven distribution of vertical reactions between the wheels. This work is grounded on a methodology that involves summarizing and analyzing established scientific findings related to the theory of tractors operating in traction mode. The analytical method and comparative analysis were employed to establish a scientific problem, define research objectives, and achieve the goal. The key principles of probability theory were applied in developing the empirical models of the tractor. The main provisions of the methodology for evaluating the traction properties of the tractor with the instability of the coupling weight were formulated. The method of evaluating the vertical reactions on the wheels of the tractor is substantiated, which is based on the measurement of the vertical reaction on one of the four wheels. It was proven that tractors with a center of mass offset to the front or rear axles have the greatest probability of equal distribution of vertical reactions between the wheels of one axle, and tractors with a center of mass in the middle between the axles have the lowest probability. It is theoretically substantiated and experimentally confirmed that when the tractor performs plowing work with uneven distribution of loads on the sides, its operation with maximum traction efficiency is ensured by blocking the front and rear axle drivers.

Keywords: tractor; traction properties; coupling weight; center of mass; vertical reactions; driving bridges; blocking (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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