MPS Analysis of Magneto-Rheological Fluid Magnetization Anisotropies

Magneto-Rheological Fluid (MRF) started to be used for industrial applications in the last 20 years, and, from that moment on, innovative uses have been evaluated for different applications to exploit its characteristic of changing yield stress as a function of the magnetic field applied. The interest of studying the fluid-dynamic behavior of the material and the different ways the fluid could be magnetized, bringing to anisotropy in its performance has led to looking for innovative simulation strategies and approach, for obtaining a more realistic result. The paper proposes an Electro-Thermal equivalence for performing a mapping of the Magneto-Rheological Fluid put in a gap. The model, developed with the software Particle Woks, allows to visualize the effects of a non-uniform magnetization around the fluid and how much this affects the global performance of the application. The model also allows other simulations to analyze more realistic situations as having air bubbles inside the fluid and how much that affects the final global performance. The model proposed has been applied to an innovative MRF based Zero-Emissions Braking System and the output to be evaluated is the peak braking torque available at the system once the magnetization is reached. The goal is to obtain a consistent Electro-Thermal Validation of the solution developed and the braking torque being compliant with a traditional disc brake.