Development and application prospects of the electromagnetic damper

The electromagnetic damper has many excellent advantages, such as no mechanical contact, small noise, easy to maintenance, high reliability and controllable braking force and so on. To date, it has very extensive applications in the field of engineering. At present, the majority of the researches about electromagnetic damper focus in the domain of magnetic braking, for example, the braking system of the high speed train, tram and magnetic levitation train. According to different primary flux sources, the electromagnetic damper is classified into electric excitation type, permanent magnet type, and hybrid excitation type. According to different magnetic circuit structures, the electromagnetic damper is classified into linear type, axial type and radial type. In this paper, the relevant researches of various types of electromagnetic damper are summarized. Some issues that have not yet been studied and the development prospect of electromagnetic dampers are also expounded.