An electrodynamic wheel is a type of wheel proposed for use in

electrodynamic levitation Electrodynamic suspension (EDS) is a form of magnetic levitation in which there are conductors which are exposed to time-varying magnetic fields. This induces eddy currents in the conductors that creates a repulsive magnetic field which holds the ...

of the

maglev Maglev (derived from '' magnetic levitation''), is a system of train transportation that uses two sets of electromagnets: one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage ...

train transport system. Unlike a conventional wheel, an electrodynamic wheel has a rim studded with

magnet A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nicke ...

s of alternating poles. As the wheel spins, which is done at a rate so that there is

slip Slip or SLIP may refer to: Science and technology Biology * Slip (fish), also known as Black Sole * Slip (horticulture), a small cutting of a plant as a specimen or for grafting * Muscle slip, a branching of a muscle, in anatomy Computing and ...

between the rim and the guideway's surface, magnetic fields are induced in the conductive guideway which repels the wheel. Depending on the spin, electrodynamic wheels can provide

propulsion Propulsion is the generation of force by any combination of pushing or pulling to modify the translational motion of an object, which is typically a rigid body (or an articulated rigid body) but may also concern a fluid. The term is derived f ...

, braking, control and lift.

Using 2D model

The mechanical rotation of a radially positioned permanent-magnet Halbach array above a conducting, nonmagnetic track induces eddy currents in the track that can inductively create suspension and propulsion forces simultaneously. The parameters that affect the performance of this electrodynamic wheel are studied using a 2-D steady-state finite-element method.

Examples

The

Hendo hoverboard A hoverboard (or hover board) is a levitating board used for personal transportation, first described in science-fiction, and made famous by the appearance of a skateboard-like hoverboard in the film '' Back to the Future Part II''. Many attempt ...

uses electrodynamic wheels to levitate itself over a conductive surface.

References

Wheels Magnetic levitation {{electromagnetism-stub

Using 2D model

Examples

See also

References