TY CONF TI ANALYSIS OF THE SOURCES OF VIBRO-ACOUSTIC ENERGY OF MOTOR GRADERS AND DETERMINATION OF A WAY TO REDUCE CABIN VIBRATION IN VARIOUS OPERATING MODES KW motor graders KW vibration KW noise KW noise protection KW vibration protection KW sources of vibro-acoustic energy JO MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2026 AU Oksyuta, O.V. AU Chepelev, I.V. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov