%0 Journal Article %T OSCILLATIONS IN A NON-AUTONOMOUS AUTOMATIC SYSTEMS WITH DRY FRICTION UNDER HARMONIC EXTERNAL ACTION %A Aung, P.. %K dry friction, mathematical model, non-Coulomb idealization, local automatic level control system, self-oscillations, limit cycle, phase plane, parameter space %J Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies %D 2016 %N 2016 %P 9 %I Astrakhan State Technical University