chapter  7
44 Pages

- Magnetorheological (MR) Brake System

As discussed in earlier chapters, MR dampers and mounts are most actively and vibrantly researched in automotive engineering. Vehicle brake systems comprise another possible application of MR ™uids. A brake is a mechanical device that inhibits motion. Brakes are generally applied to rotating wheels (or axles) to stop a vehicle. Most common brakes use friction to convert kinetic energy into heat, although several other methods of energy conversion may be employed. There are currently some efforts underway to develop a variable resistance brake utilizing MR ™uids. Webb developed an exercise apparatus using an MR brake [1]. Avraam et al. proposed an MR brake for a wrist rehabilitation application [2]. Development devices associated with an MR brake to replace conventional systems, which usually possess a complex actuating mechanism, also recently received great consideration in the „eld of haptics [3-5]. Several applications in the automotive industry using MR brakes have also been proposed [4, 6].