The Design And Research Of The Disc Type Ma Gnetorheo-Logical Suspensions Brake

Magnetorheological Suspensions is a kind of controlled fluid, which are regarded as imitate the magnetism electrorheological fluid. In the absence of an applied magnetic field, Magnetorheological Suspensions exhibit Newtonian-fluid-like behavior. When a magnetic field be applied, Within a few milliseconds, the fluid appearance and performance may be quickly changed, and the apparent viscosity coefficient is increased substantially, the flow of liquid exhibit a Bingham plastic behavior, having a viscosity and plasticity characteristics;When the applied magnetic field intensity change, yield stress also with change. And this kind of change is continuous and reversible, quick and easy control, thus caused the domestic and foreign scholars and industry interest, become the widely intelligent material research important branch.On the basis of the characteristic,the design of MRS brake has smooth braking, fast response speed, low energy consumption and other advantages,it has used in engineering fields widely.This thesis design MRS brake is a use of MRS shear stress for braking device, it with the braking torque of additional magnetic field changes. This paper studies for means from theory, and uses the experiment for the magnetorheological fluid in the brake to study the use:first of all, this paper introduces the MRS materials and rheological characteristics, and this topic research contents and meaning, then, Introduces the working principle, brake MRS brakes work patterns and characteristics, and emphatically introduces the working principle of the shear drum brake, then, design MRS brake:magnetic circuit design and rotary brake structure design, at last, investigate and experiment the MRS brake.Finally, the paper puts forward the full text and summarizes the innovations and further research work.