TY JOUR TI SIMULATION MODEL FOR ESTIMATION OF FOREST TRUCK PERFORMANCE EQUIPPED WITH RECUPERATIVE SPRING-HYDRAULIC FIFTH-WHEEL COUPLING KW timber truck KW timber KW trailer KW recuperative pneumo-hydraulic towing hitch KW efficiency KW working fluid energy KW pneumohydraulic accumulator JO Forestry Engineering Journal AU Posmetev, V.I. AU Nikonov, V.O. AU Posmetev, V.V. AU Siz'min, I.V. PY 2021 IS 10 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov