<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper presents a dynamic model of four-element machine-and-tractor designed on the basis of a combined soil-cultivating-sowing aggregate and a tractor with an articulated frame. The pseudo velocity of the first tractor half-frame was considered a generalised coordinate. The control impact upon the tractor was obtained by means of the bending angle of the tractor half-frames. The trajectories and movement speeds of the aggregate elements were calculated as a function of time for the driving mode along a straight-line path and the tractor movement according to the harmonic control law. By means of the measuring system, trajectories of the aggregate elements were obtained. It was established that the movement trajectories of the aggregate elements represent a complex assessment parameter of the mathematical model adequacy of the aggregate plane-parallel movement. There was found a regularity of the aggregate turning radius and the bending angle of the tractor half-frames.</p>
</abstract>

The paper presents a dynamic model of four-element machine-and-tractor designed on the basis of a combined soil-cultivating-sowing aggregate and a tractor with an articulated frame. The pseudo velocity of the first tractor half-frame was considered a generalised coordinate. The control impact upon the tractor was obtained by means of the bending angle of the tractor half-frames. The trajectories and movement speeds of the aggregate elements were calculated as a function of time for the driving mode along a straight-line path and the tractor movement according to the harmonic control law. By means of the measuring system, trajectories of the aggregate elements were obtained. It was established that the movement trajectories of the aggregate elements represent a complex assessment parameter of the mathematical model adequacy of the aggregate plane-parallel movement. There was found a regularity of the aggregate turning radius and the bending angle of the tractor half-frames.

Investigations of the Dynamics of a Four-Element Machine-and-Tractor Aggregate

National University of Life and Environmental Sciences of Ukraine

Latvia University of Life Sciences and Technologies

Institute for Agricultural Engineering and Electrification

Kharkiv Petro Vasylenko National Technical University of Agriculture

Acta Technologica Agriculturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Investigations of the Dynamics of a Four-Element Machine-and-Tractor Aggregate"}

The paper presents a dynamic model of four-element machine-and-tractor designed on the basis of a combined soil-cultivating-sowing aggregate and a tractor with...

Investigations of the Dynamics of a Four-Element Machine-and-Tractor Aggregate

Published Online: Nov 12, 2019

Page range: 146 - 151

DOI: https://doi.org/10.2478/ata-2019-0026

Keywords
dynamics, movement, mathematical mode, measuring system

© 2019 Volodymyr Bulgakov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Investigations of the Dynamics of a Four-Element Machine-and-Tractor Aggregate

Published Online: Nov 12, 2019

Page range: 146 - 151

DOI: https://doi.org/10.2478/ata-2019-0026

Keywordsdynamics, movement, mathematical mode, measuring system

© 2019 Volodymyr Bulgakov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
dynamics, movement, mathematical mode, measuring system