Effect Analysis of Structure Parameters on Pressure Drop for a Double-coil Magnetorheological Valve

A double-coil magnetorheological( MR) valve was designed according to the controllable rheological properties of the magnetorheological fluid. The working principle was introduced,and the pressure drop was also discussed. The magnetic field simulation was conducted using ANSYS software; the effects of the current directions of the double-coil,the valve spool chamfer and the width of the resistance gap on the magnetic induction intensity of the resistance gap and the pressure drop were also investigated. Finally,the optimal structure parameters of the double-coil valve were achieved,and the prototype was also manufactured. The relevant results can provide some guide for the design of other types of MR valve.