A Mathematical Model of the Plane-Parallel Movement of an Asymmetric Machine-and-Tractor Aggregate

Volodymyr Bulgakov, Simone Pascuzzi, Volodymyr Nadykto and Semjons Ivanovs
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Volodymyr Bulgakov: Department of Mechanics, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, 03041 Kyiv, Ukraine
Simone Pascuzzi: Department of Agricultural and Environmental Science, University of Bari Aldo Moro, 70124 Bari, Italy
Volodymyr Nadykto: Department of Machine Use in Agriculture, Mechanical Engineering Faculty, Tavria State Agrotechnological University of Ukraine, 72310 Melitopol, Ukraine
Semjons Ivanovs: Faculty of Engineering, Latvia University of Agriculture, LV2130 Jelgava, Latvia

Agriculture, 2018, vol. 8, issue 10, 1-15

Abstract: Technological peculiarities of cultivation and harvesting of some agricultural crops make it necessary to use asymmetric machine-and-tractor aggregates. However, for the time being there is no sufficiently complete, analytical study of the steady movement of such machine-and-tractor aggregates. This necessitates the development of a theory of stable movement of the aggregates which would allow choosing their optimal kinematic and design parameters. On the basis of the results of mathematical simulation, a system of linear differential equations of the second order is obtained describing transverse displacement of the center of masses of the aggregating wheeled tractor and turning of its longitudinal axis of symmetry by some angle around the indicated center of mass, as well as the deviation angle of the rear-trailed harvester from the longitudinal axis of the tractor at any arbitrary moment of time. This system of differential equations can be applied for numerical calculations on the PC, which will make it possible to evaluate the stability of the movement of the asymmetric machine-and-tractor aggregate when it performs the technological process.

Keywords: aggregate; trailed asymmetric machine; simulation (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: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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