TY JOUR TI STUDY OF REGENERATIVE VIBRATIONS IN TURNING KW self-oscillations KW cutting speed modulation KW modulation frequency KW shaft turning JO Bulletin of the Angarsk State Technical University AU Chistoforova, N.V. AU Zubkov, N.V. PY 2022 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»