## 3 Results and Discussion
The information shown in Figure 3 may be used to select the speed of rotation and the length of the blade of the thrower, at which the required absolute speed of the descent of the haulm particle from the end of the blade is achieved with further modeling of its movement along the casing of the loading mechanism of the haulm harvester. The dependence of the relative velocity of particle \(M\) as it moves along the blade upon the velocity of the airflow \(V_{n}\) at different angular velocity \(\omega\) of rotation of the thrower is shown in Figure 4.  
Analyzing the obtained dependences (Curve 1, Figure 4), one can say that at a low angular velocity \(\omega\) of rotation of the thrower, an increase in the airflow velocity \(V_{n}\) from 5 to 35 m\(\cdot\)s\({}^{-1}\) leads to a smooth linear increase in the relative velocity of particle \(M\) as it moves along the blade from 0.67 up to 0.78 m\(\cdot\)s\({}^{-1}\). For a higher angular velocity \(\omega\) of rotation of the thrower (Curve 3), there is a more intense increase in the relative velocity of the haulm particle at an airflow velocity \(V_{n}\) within a range from 5 to 25 m\(\cdot\)s\({}^{-1}\) and approaches a linear law at an airflow velocity of more than 25 m\(\cdot\)s\({}^{-1}\). Figure 3: Dependence of the absolute speed \(V_{a}\) of descent of a haulm particle \(M\) from the end of the blade upon the angular velocity \(\omega\) of rotation of the thrower and the length \(l\) of the blade: **1**—\(l\) = 0.1 m; **2**—\(l\) = 0.15 m; **3**—\(l\) = 0.2 m; **4**—\(l\) = 0.25 m; **5**—\(l\) = 0.3 m; **6**—\(l\) = 0.35 m.  
In addition, the relative velocity varies from 0.9 to 1.4 m\(\cdot\)s\({}^{-1}\). At an angular velocity of \(\omega\) = 15 s\({}^{-1}\) (Curve 2), there is a decrease in the relative velocity of particle \(M\) when moving along the blade at an airflow speed \(V_{n}\) of up to 30 m\(\cdot\)s\({}^{-1}\), which indicates that the airflow prevents the movement of the haulm particles, and only at an airflow \(V_{n}\) over 30 m\(\cdot\)s\({}^{-1}\) a gradual increase in the relative velocity of the particle is observed. The following shows the dependence (Figure 5) of the relative velocity \(\dot{x}\) of haulm particle \(M\) on the angular velocity \(\omega\) of rotation of the thrower. The dependence in Figure 5 shows that in the case of using a thrower with a small blade length (up to 0.15 m) and, despite the high speed \(V_{n}\) of the airflow, there is a drop in the relative, and as a result, the absolute \(V_{a}\) speed of haulm particle \(M\) when it leaves the blade of the haulm thrower at an angular velocity \(\omega\), is equal to 10\(\ldots\)13 s\({}^{-1}\). Accordingly, for the final selection of the structural and kinematic parameters of the thrower, it is necessary to analyze the output parameters using the developed mathematical model to obtain the highest efficiency and the required absolute speed of the descent of the haulm particle from the blade. This is to ensure its further movement along the surface of the casing of the loading mechanism of the haulm harvester, taking into account the influence of the airflow. The studies of other authors [11] previously considered the movement of particles of a technological material along the surfaces of the working parts of agricultural machines and implements. The nature of the change in the kinematic characteristics of the particle under consideration coincides with our results. But, when using the mathematical model that we have developed for the movement of a particle of the tops along the blade of the thrower, more accurate results are obtained since the influence of the air flow and aerodynamic characteristics of the particle are taken into account. This makes it possible to  
Figure 4: Dependence of the relative speed \(\dot{x}\) of the haulm particle \(M\) on the speed of the airflow \(V_{n}\) and the angular speed \(\omega\) of rotation of the (at \(l\) = 0.15 m): **1**—\(\omega\) = 10 s\({}^{-1}\); **2**—\(\omega\) = 15 s\({}^{-1}\); **3**—\(\omega\) = 20 s\({}^{-1}\).