컨버팅 장비 고장력 제어용 MR 브레이크에 관한 연구

In this study, a MR(Magneto-rheological) brake to obtain high torque-to-size ratio instead of conventional powder brake is presented for high-tension control of converting machinery such as coater, slitter and so on. First, to obtain the higher performance than conventional powder brake, a MR brake with a modified rotor shape is newly designed and analyzed using electromagnetic field analysis. Second, a prototype of the MR brake is fabricated with the optimized structural parameters and an experimental apparatus is constructed. Then, output torque characteristics of the MR brake with the various current and rotational speed are investigated.