Electrodynamic wheel (original) (raw)

An electrodynamic wheel is a type of wheel proposed for use in electrodynamic levitation of the maglev train transport system. Unlike a conventional wheel, an electrodynamic wheel has a rim studded with magnets of alternating poles. As the wheel spins, which is done at a rate so that there is slip 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, braking, control and lift.