Magnetic Figures illustrating Electrodynamic Relations

Electrodynamic magnetic suspension-models, scaling laws, and experimental results

A simple experiment illustrating the principles of electrodynamic magnetic suspension is described and test results are given. A disk-shaped coil made of insulated copper magnet wire and energized with 60-Hz ac line voltage is levitated in a stable equilibrium position above a wide aluminum plate. The mechanisms generating levitation force are identified by the use of Maxwell’s equations. A lum...

Flywheel Energy Storage System with Homopolar Electrodynamic Magnetic Bearing*

.Abstract – The goal of this research was to evaluate the potential of homopolar electrodynamic magnetic bearings for flywheel energy storage systems (FESSs). The primary target was a FESS for Low Earth Orbit (LEO) satellites, however, the design can also be easily adapted for Earth-based applications. The main advantages of Homopolar Electrodynamic Bearings compared to more conventional Active...

Illustrating Magnetic Field Lines using a Discrete Particle Model

In this paper we demonstrate how a computational physics approach based on a discrete particle model can be employed for the visualization of magnetic field lines. This can be regarded as an illustration technique for the underlying vector field. To accomplish this, a model for ellipsoidal shaped particles consisting of ferromagnetic materials is described in combination with a parallel simulat...

Electrodynamic Metanuclei

A relativistic system of electrically charged fermions and oppositely charged massive scalars with no self-interactions, is argued to have a long-lived collective state with a net charge. The charge is residing near the surface of the spherically-symmetric state, while the interior consists of the condensed scalars, that are neutralized by the fermions. The metastability is achieved by competit...

Quantum electrodynamic shifts of mass and magnetic moment near dielectric or conducting surfaces