To the study of the dynamics of the transmission of a wheeled tractor operating as part of a soil tillage unit
DOI:
https://doi.org/10.31359/2311.441X.2026.28.96Keywords:
dynamics, transmission, mathematical model, moment, force, tillage, machine-tractor unitAbstract
Abstract. It has been determined that the study of the dynamics of the transmission of a wheeled tractor operating as part of a tillage unit is key to improving the efficiency, reliability and durability of agricultural machinery. This is a complex task that includes the analysis of the interaction of the tractor with the soil, dynamic loads on the transmission, as well as the optimization of gear shifting and control systems. It has been established that the efficiency of tillage units largely depends on the interaction of working bodies with soil and traction characteristics of the tractor. It has been established that the study of the dynamics of the transmission dynamics of an all-wheel drive wheeled tractor operating as part of a tillage MTA requires the compilation of an appropriate dynamic and mathematical model. Using the methods of forming the equations of the dynamics of the tractor transmission, the corresponding dynamic and mathematical models of the tractor transmission were compiled. A mathematical model of the dynamics of an all-wheel drive wheeled tractor operating as part of a tillage unit was studied on the example of a wheeled tractor KhTZ-17021 and a cultivator KPS-4.2. The dependencies of the rotation speeds of the transmission elements and wheels of an all-wheel drive wheeled tractor on time have been established. The dependencies of the moments acting on the transmission elements and the torques of the wheels of an all-wheel drive wheeled tractor on time have been determined. The dependence of the tangential traction forces and the resistance of the wheels of the wheels of an all-wheel drive wheeled tractor on time has been calculated. The angular velocities ω1, ω2 and ω3 have a pronounced transient process at the initial stage (t < 1 s). After a short-term transient, the system enters a steady state of operation at ω1 ≈ 275 rad/s, ω2 ≈275 rad/s and ω3 ≈40 rad/s. After the completion of the transient, the torques of the tractor wheels stabilize at the level of Mk11 ≈ Mk12 ≈ 1.8·104 N·m and Mk21 ≈ Mk22 ≈ 1.1 104 N·m. At the initial moment of time, there is a short-term sharp impulse (peak value) of the tangential forces of traction and resistance of the wheels of an all-wheel drive wheeled tractor, after which all curves quickly fade away (at the level of Pk11 ≈ Pk12 ≈ 0.73·104 N and Pk21 ≈ Pk22 ≈ 0.45·104 N).
References
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3. Yan J., Kong Z., Liu Y., Li N., Yang X., Zhuang M. A high-resolution energy use efficiency assessment of China’s staple food crop production and associated improvement potential. Renewable and Sustainable Energy Reviews, 2023.
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6. Askari M, Abbaspour-Gilandeh Y, Taghinezhad E, Hegazy R, Okasha M. Prediction and optimizing the multiple responses of the overall energy efficiency (OEE) of a tractor-implement system using response surface methodology. Journal of Terramechanics [Internet]. 2022 Oct;103:11–7. Available from: http://dx.doi.org/10.1016/j.jterra.2022.06.003
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