DESIGN AND TESTING A MAGNETO-RHEOLOGICAL BRAKE WITH CYLINDRICAL CONFIGURATION

The paper focuses on design considerations and experimental investigations of a MRB with cylindrical configuration. The design considerations for MRB with cylindrical configuration are presented. The magneto-rheological torque contribution is estimated at the design stage based on geometric configuration and the proprieties of the magneto-rheological fluid (MRF132DG) selected for this case. The MRB is manufactured and investigated on a range of speeds from 100 rpm to 1100 rpm for voltage values applied to the coil up to 32V. The mechanical, electromagnetic and magnetorheological contributions are discriminated from the braking torque assessing the performances of the MRB. The variation in time of the torque under different speed values and several voltages applied to the coil is investigated in order to explore the MRB response time. The design methodology is validated against the data determined on MRB configuration. The conclusions on the design methodology of MRB and its operation are underlined in last section.