The Efficiency of Tractor Application with Articulated Frame for Cultivating Arable Crops

Nadykto, Volodymyr; Надикто, Володимир Трохимович; Nadykto, Volodymyr; Karaiev, Oleksandr; Караев, Александр Игнатьевич; Kiurchev, Volodymyr; Кюрчев, Володимир Миколайович; Кюрчев, Владимир Николаевич; Beloev, Hristo

doi:10.1007/978-3-030-14918-5_17

Cited by 7 publications

(8 citation statements)

References 2 publications

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“…Це зумовлює підвищені агротехнічні вимоги до якості їх сівби. У нашій країні прямолінійність посівів просапних культур, що вирощуються за ширини міжряддя 45 -70 см, вважається задовільною тоді, коли дисперсія коливань їх рядків D lim не перевищує 12,50 cм 2 , а частота зрізу нормованої спектральної щільності цих коливань ω lim становить не більш ніж 0,25 м -1 [1,2]. Слід підкреслити, що параметр ω lim визначає діапазон частот 0ω lim , у якому зосереджено щонайменше 95% дисперсії коливань досліджуваного параметра.…”

Section: мета визначити умови стійкого руху асиметричного посівного м...unclassified

Experimental studies of the movement trajectory of asymmetric sowing machine-tractor unit

Bulgakov,

Adamchuk,

Nadykto

et al. 2023

Visnyk agrarnoi nauky

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Section: мета визначити умови стійкого руху асиметричного посівного м...unclassified

Experimental studies of the movement trajectory of asymmetric sowing machine-tractor unit

Bulgakov,

Adamchuk,

Nadykto

et al. 2023

Visnyk agrarnoi nauky

View full text Add to dashboard Cite

“…It is best to perform the analysis of the stability of the movement of the considered dynamic system using the amplitude-frequency and the phase-frequency characteristics. Such characteristics are currently used to effectively solve similar problems [1,5,11,13,14]. As it turns out, it is these characteristics that best reflect the stability of a dynamic system in the form of its response to the input disturbance.…”

Section: K mentioning

confidence: 99%

“…The results of investigations of the stability of movement of articulated energy devices are published in [5][6][7][8][9][10][11][12][13].…”

mentioning

confidence: 99%

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

et al. 2020

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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.

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“…Analysis of recent research and publications. In the literature quite a lot of attention is paid to the question of stability of movement of hinged-connected energy devices [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Fig 1 Modular Machine and Tractor Unit: Em -Energy Module;mentioning

confidence: 99%

The study of the stability of motion of the modular machine-tractor assembly

Bulgakov¹,

Надикто²,

Golovach³

et al. 2020

Visnyk agrarnoi nauky

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Goal. To explore theoretically and experimentally the increase of stability of the pivot connection of the technological and power modules of a new design of the modular machine-tractor unit. Methods. Theoretical studies were carried out using the main provisions of the higher mathematics, theoretical mechanics, theory of automatic control. Experimental studies were carried out in field conditions on a real modular machine-tractor unit. Results. The new construction of the pivot connection of the technological module with the power module (tractor) of the modular machine-tractor unit is developed. To ensure satisfactory maneuverability of technological module when cornering it is equipped with vertical and horizontal joints. Limitation of turning ability of technological module relative to the power one in the horizontal plane through this vertical hinge is provided by a hydraulic cylinder, which over-and underpiston cavities are connected through a restrictor with the coefficient of hydraulic resistance at the level of 1.03×106 N•m•s•rad-1. Based on the equivalent power circuit, a mathematical model was created of movement of the unit, allowing to investigate theoretically its stability. As the energizing impact was taken the turning moment, created by external forces. Output parameters of the model were the angle of rotation of the technological module relative to the energy in the horizontal plane, and the heading angle of the latter. The theoretical study is confirmed experimentally. Conclusions. As a result of mathematical modeling, the change of speed of the unit from 2 to 5 m•s-1 does not lead to a deterioration of the stability of motion, neither technological nor, especially, the power modules. The values of the coefficients of resistance of the introduction of wheel tires of power module do not affect its development of fluctuations of the energizing moment. However, the value of the coefficient of resistance of the introduction of the tire of each wheel of the technological module of modular traction vehicle should be not less than 160 kN•rad-1.

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The Efficiency of Tractor Application with Articulated Frame for Cultivating Arable Crops

Cited by 7 publications

References 2 publications

Experimental studies of the movement trajectory of asymmetric sowing machine-tractor unit

Experimental studies of the movement trajectory of asymmetric sowing machine-tractor unit

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

The study of the stability of motion of the modular machine-tractor assembly

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