A Mathematical Model of Plane-Parallel Movement of the Tractor Aggregate Modular Type

Volodymyr Bulgakov, Aivars Aboltins, Semjons Ivanovs, Ivan Holovach, Volodymyr Nadykto and Hristo Beloev
Additional contact information
Volodymyr Bulgakov: Department of Mechanics, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, 03041 Kyiv, Ukraine
Aivars Aboltins: Institute of Agricultural Machinery, Faculty of Engineering, Latvia University of Life Sciences and Technologies, Cakstes Blvd. 5, LV-3001 Jelgava, Latvia
Semjons Ivanovs: Institute of Agricultural Machinery, Faculty of Engineering, Latvia University of Life Sciences and Technologies, Cakstes Blvd. 5, LV-3001 Jelgava, Latvia
Ivan Holovach: Department of Mechanics, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, 03041 Kyiv, Ukraine
Volodymyr Nadykto: Department of Machine-Using in Agriculture, Dmytro Motornyi Tavria State Agrotechnological University, 18, Khmelnytskiy Ave., 72312 Melitopol, Ukraine
Hristo Beloev: Department of Agricultural Machinery, University of Ruse “Angel Kanchev”, Studentska 8, 7017 Ruse, Bulgaria

Agriculture, 2020, vol. 10, issue 10, 1-22

Abstract: The new machine-and-tractor aggregate of a modular type, developed by us, consisting of the power and the technological modules, can significantly increase the efficiency of using the tractor when it is aggregated with a five-body plough. The new design solution for connecting these modules in a horizontal plane through a damper, consisting of a hydraulic cylinder and a throttle, allows significant increasing of the movement stability of this aggregate in a transverse-horizontal plane. To test the efficient operation of the proposed design, as well as to determine the kinematic and design parameters that provide the required level of stable movement of this modular machine-and-tractor aggregate, we carried out theoretical and experimental field investigations. For this, a new mathematical model of plane-parallel movement of the machine-and-tractor aggregate of this type was built. It was found that a change in the operating speed of this aggregate during ploughing from 1.0 to 3.0 m∙s −1 does not lead to a deterioration in the stability of the movement of either the technological or, especially, the power modules. The delay in the reaction of the power module of the machine-and-tractor aggregate of the modular type is practically invariant with respect to the change in the mode of movement of this aggregate within the range 1–3 m∙s −1 . It was also found that the values of the tire slip resistance coefficients of the wheels of the power module do not have a noticeable impact upon the development of fluctuations of the disturbing moment.

Keywords: module; stability of movement; ploughing; phase–frequency characteristic (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: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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