Development of a new magnetorheological fluid-based brake with multiple coils placed on the side housings

摘要

In this research, a new configuration of magnetorheological fluid-based brake with multiple coils placed on each side of the brake housing (multiple side-coil magnetorheological fluid-based brake) is proposed, optimally designed, and evaluated. With this configuration, the multiple side-coil magnetorheological fluid-based brake is expected to provide higher braking torque and more compact size than the traditional magnetorheological fluid-based brake. After a brief introduction about the development of magnetorheological fluid-based brake, the configuration of multiple side-coil magnetorheological fluid-based brake is proposed. Braking torque of the proposed magnetorheological fluid-based brake is then analyzed based on the Bingham plastic rheological model of magnetorheological fluid. The optimization of the proposed multiple side-coil magnetorheological fluid-based brake, the magnetorheological fluid-based brake with one coil placed on each side of the brake housing (single side-coil magnetorheological fluid-based brake), and the conventional magnetorheological fluid-based brake is then performed considering maximum braking torque and mass of the brakes. Based on the optimal results, advanced performance characteristics of the proposed magnetorheological fluid-based brake are figured out. In addition, experimental works are conducted to validate the performance of the proposed multiple side-coil magnetorheological fluid-based brake.