TY JOUR TI PHYSICAL MODEL OF A TWO-STAGE VIBRATION UNIT FOR GENERATING ASYMMETRIC OSCILLATIONS KW vibrator KW vibrating table KW circular KW directional KW asymmetric oscillations KW asymmetry coefficient JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Ryazancev, V.G. AU Gerasimov, M.D. AU Lyubimyy, N.S. AU Pol'shin, A.A. AU Tihonov, A.A. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov