Simulation and investigation of magnetorheological fluid brake

The paper deals with coupled electromagnetic, hydrodynamic and mechanical motion phenomena in magnetorheological fluid (or simply MRF) brakes. The governing equations of these phenomena are presented. The numerical implementation of the mathematical model is based on the finite element method. Elaborated computer program is used to simulate the operation of MRF brake prototype. In order to verify elaborated algorithm and program, the investigation of the prototype of MR brake is carried out. The dynamic properties as well as mechanical and control characteristics of the brake are determined. The influence of MR fluid properties on functional parameters of the brake is also considered. Chosen results of simulations and measurements are presented.