Determination of the theoretical trajectory of a tractor at a turn
| Autor: | N.V. Mikheyev, T. V. Trishina, V. P. Shatsky, V V Sheredekin, I. A. Vysotskaya, A. N. Belyaev, V I Orobinsky, A.I. Zavrazhnov |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 1111:012008 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/1111/1/012008 |
| Popis: | The most complete idea of the stability of the curvilinear motion of a tractor is given by the nature of the change in the trajectory of motion of its kinematic center and the coordinates of the turn: the abscissa and ordinate of the headland, showing both the transverse and longitudinal deviations of the machine-tractor unit, including those determining its productivity and the required quality of agricultural operations. According to the operating conditions, the methods of motion of the unit are chosen, both on the main array of the field and on the headland. The paper presents explicit equations for the analytical calculation of the theoretical coordinates of the points of the kinematic center trajectory of the tractor when it performs a circular loopless rotation, which allowed determining the theoretical trajectory of a complete cycle of circular loopless rotation of a tractor depending on the following parameters. These parameters are as follows: design - base, distances between the axes of the pivots, maximum angles of rotation of the internal wheels; operational - forward speed of a tractor, the angular speed of the steered wheels in the transverse plane. The author made the attempt to analyze and compare the most universal ways of turn: the front steered wheels and the front and rear steered wheels by turning them in different directions relative to the core. |
| Databáze: | OpenAIRE |
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