TY JOUR TI PNEUMO-HYDRAULIC TRACTION AND COUPLING DEVICE OF A FORESTRY CAR WITH TRAILER KW traction coupling device KW timber truck KW trailer KW inertia forces KW pneumohydraulic accumulator KW recovery KW pneumohydraulic device KW hydraulic energy. JO Actual directions of scientific researches of the XXI century: theory and practice AU Nikonov, V.O. AU Posmetev, V.I. AU Siz'min, I.V. PY 2020 IS 8 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov