TY JOUR TI Influence of the Axle Box Elastic Element on the Life of the Bogie Side Frame at 25 Tonnes Axial Load KW Cargo bogie KW side frame of the car bogie KW resource KW service life KW fatigue resistance JO Bulletin of scientific research results AU Chernov, V.A. AU Cyganskaya, L.V. AU Beyn, D.G. PY 2025 IS 2025 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"