TY JOUR TI The Problems of Assessing the Resource and Fatigue Strength during the Production of Innovative Rolling Stock KW Fatigue resistance KW wagon life KW launching into production KW fatigue resistance reserve coefficient KW innovative rolling stock JO Bulletin of scientific research results AU Komaydanov, A.A. AU Smirnov, A.N. AU Zverev, M.V. PY 2023 IS 2023 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"