Structure Design And Performance Analysis Of A Hybrid Flow Magnetorheological Valve

Most magnetorheological valves were annual flow or radial flow nowadays. It was difficult to get larger pressure drop and adjustable range when volume was constant. It wasn’t convenient to use for some place where space was limited but was required large pressure drop. Meanwhile, The hybrid flow magnetorheological valves that were designed, which contain mistakes that pressure drop little and magnetic field utilization rate not full, structure complex. In order to solve this problem, This paper presented a hybrid flow magnetorheological valve with large pressure drop, compact structure full use of magnetic field utilization.This paper mainly contains five points.1. Designed structure of the hybrid flow magnetorheological valve. Chose materials for the hybrid flow magnetorheological valve’s components. Check magnetic flux path through theory of equations. The result showed that the magnetic circuit was right.2. Established pressure drop model of the hybrid flow magnetorheological valve. And we knew that the length, the thickness and shear stress of damping gaps were the main factors which influence the pressure drop.3. In order to verify validity of magnetic path and achieved the magnetic flux density of the two resistance gap with different applied current, this paper used of ANSYS software to simulation. The result showed that the magnetic flux density of the two resistance gaps were basically same and high utilization rate of magnetic field of this magnetorheological valve. The smaller gap of radial resistance, the bigger magnetic flux density of the two resistance gaps when the current was certain. The result showed the right of the hybrid of magnetorheological valve. Calculate the press drop we knew that the bigger of current, the greater of the magnetic flux density when shear stress is not saturated..4. Tested factors what may influence the value of pressure drop and analyzed test result. The test result showed that current and resistance gaps were the main factors which influence the pressure drop. Under the condition of a certain volume, larger pressure drop and adjustable range of this magnetorheological valve. The result also showed hysteretic phenomena of this magnetorheological valve and the load doesn’t influent the pressure drop.5. Compared simulation result to test result and analyzed both the similarities and differences. Comparison results showed that the same change with current trends, but there exist certain differences in values.