TY JOUR TI ANALYSIS OF THE STRESS-STRAIN STATE OF THE FRAME OF THE SIBIRYAK CULTIVATOR USING THE FINITE ELEMENT METHOD IN THE ANSYS PROGRAM KW stress-strain state KW cultivator frame KW finite element method KW ansys software package JO Vestnik of Omsk SAU AU AVDEEV, D.A. AU CHEKUSOV, M.S. PY 2025 IS 57 PB FSBEI HE Omsk SAU