TY JOUR TI ROD OSCILLATION INVESTIGATION OF ADAPTIVE TORSION SPRING FOR SPRING SUSPENSION OF SIX-WHEEL LOCOMOTIVE BOGIES KW adaptive torsion spring KW oscillations KW spring hanger JO Bulletin of Bryansk state technical university AU Radin, S.Y. AU Slivinskiy, E.V. AU Mitina , T.. PY 2016 IS 2016 PB Bryansk State Technical University