Damping of an oscillatory system with incomplete sealing of the air cavity by magnetic fluid

V. M. Polunin - P. A. Ryapolov - E. V. Shel'deshova - G. V. Karpova - V. M. Paukov

Southwest State University, Kursk, Russia

Abstract
The article presents results of an experimental study on damping an oscillatory system with incomplete sealing of the air cavity by a magnetic fluid. The sealing degree varies due to the process of gas pumping through capillaries of different radii. The proposed relaxation theory of a capillary oscillating gas flow predicts abnormally large values of the damping coefficient and almost complete damping of the oscillatory system with a magneto-fluid inertial element. The obtained data are of applied importance. Tables 4, Figs 3, Refs 18.