TY CONF TI MATHEMATICAL MODEL OF ROTATION OF THE COLUMN OF THE MANIPULATOR OF AN AUTO-SORTING TRUCK KW hydraulic manipulator KW modernization KW rotation mechanism KW mathematical model KW analysis JO MODERN FORESTRY COMPLEX OF THE COUNTRY: INNOVATIVE DEVELOPMENTS AND RESEARCH AU Homenko, K.G. AU Popikov, P.I. AU Kravchenko, K.I. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov