Design and modelling of a magneto rheological fluidS based clutch system

Mechanical clutch systems are often faced with problems of Slippage, Wear and Tear of the Clutch Plate, Loss of power, overloading and clutch noise. Magneto rheological (MR) fluids are materials that respond to an applied magnetic field with a change in rheological behavior. Typically, this change is manifested by the development of a yield stress that increases proportionally with applied field. A magneto rheological fluid based Clutch System overcomes all of the problems encountered by a Mechanical clutch due to fast response times and the ability to withstand high shear stresses. In the MR Fluid Clutch System, the MR fluid is introduced between moving parts and a magnetic field is applied which changes the viscosity of the MR fluid. When the clutch is engaged, this causes the viscosity of the MRF to increase, thus locking the driveshaft into place with the flywheel of the engine. When the clutch is disengaged, the viscosity decreases allowing a smooth gear shift and complete disengagement of the flywheel from the gearbox. Such an application causes no wear and tear, reduces slippage to zero, completely reduces noise and power loss and allows for an electronic control over the Clutch system.