On Unique Phenomena of Magnetic Fluid Pendulum Subject to Alternating Magnetic Fields

Abstract

This paper describes unique phenomena of magnetic fluid pendulum subject to alternating magnetic fields. Experimental study on a magnetic fluid torsional pendulum in an oscillating magnetic field was conducted. The experimental device is a thin disk-shaped container filled with a magnetic fluid and suspended in a horizontal linearly polarized alternating magnetic field. The dynamic behavior of the magnetic fluid pendulum in Helmholtz coil was measured with the optical displacement detector system. It was found that the magnetic fluid pendulum in the magnetic field exhibits a rich variety of nonlinear self-oscillatory regimes.