TY JOUR TI Modeling the movement of parts of percussion machines with crank mechanism polzuny with multiple slider KW Crank polzuny mechanism with multiple slide air cushion. JO Actual directions of scientific researches of the XXI century: theory and practice AU Karimbaev, T.. AU Dzhumataev, M.. AU Bayaliev, A.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov