TY JOUR TI Determination of the volumes of useful and excess regenerative energy of the electric rolling stock of the urban electric transport KW railway track KW train-track interaction KW dynamic wheel load on the rail KW strength calculation of the railway track KW equivalent track mass JO Bulletin of scientific research results AU Katsay, A.V. AU Sharyakov, V.A. AU Sharyakova, O.L. PY 2024 IS 2024 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"