Theoretical investigations of oscillations of root crop head cleaner hanged on integral row-crop tractor
2017
Bulgakov, V., National Univ. of Life and Environmental Sciences of Ukraine, Kiev (Ukraine) | Nikolaenko, S., National Univ. of Life and Environmental Sciences of Ukraine, Kiev (Ukraine) | Holovach, I., National Univ. of Life and Environmental Sciences of Ukraine, Kiev (Ukraine) | Ivanovs, S., Latvia Univ. of Agriculture, Jelgava (Latvia) | Vartukapteinis, K., Latvia Univ. of Agriculture, Jelgava (Latvia)
There is proposed a new design of a trailed sugar beet head cleaner from the remnants of tops without extraction of beets from the soil, with a vertical cleaning shaft. However, the quality of its operation depends to a large extent on the magnitude of the vertical oscillations of the cleaner frame, which take place at a high speed of its forward movement. According to the developed equivalent scheme and the initial equations in the form of Lagrange of the 2nd kind, a mathematical model has been constructed for the root crop head cleaner, hanged from behind to an integral tractor, consisting of two nonlinear differential equations describing the oscillations of its pneumatic tracer wheels and the cleaning tool when moving along the surface irregularities. Numerical simulation on the PC has made it possible to determine the optimal design and kinematic parameters of the cleaner, allowing to reduce the magnitude of oscillations of its tracer wheels, frame and cleaning tool, which, on the whole, significantly increases the efficiency and quality of the root crop cleaning from the tops without extracting the root crops from the soil.
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