TY JOUR TI SEARCH FOR WAYS TO IMPROVE THE TRACTION PROPERTIES OF LOCOMOTIVES AND TRACTION DRIVE DESIGN KW drive KW locomotive KW locomotive KW machines KW engine KW self-oscillations KW reliability JO Bulletin of Bryansk state technical university AU Vorob'ev, V.I. AU Pugachev, A.A. AU Izmerov, O.V. AU Nikolaev, E.V. PY 2021 IS PB Bryansk State Technical University