Suppression of torsional vibrations by a sectioned hollow cylinder containing liquid (Effect of Coriolis force)

摘要

This paper describes the suppression of torsional vibrations of a rotor by a hollow cylinder partially filled with liquid. The hollow cylinder is divided into identical sections by radial walls. The numbers of sections of the hollow cylinders are 3, 6, and 8. Tuning conditions for fill ratios are examined. Surface waves are also observed for the cylinder with 3 sections. Accordingly, observed surface waves move backward, that is, they travel in the opposite direction of the rotation. Analysis including the Coriolis force is presented. Analytical results show good agreement with the experimental ones.