Magnetorheological valves are important components in hydraulic systems that provide precise position control.
At present, the low-pressure drop performance of magnetorheological valves is the main problem limiting
their application. To improve the pressure drop performance of magnetorheological valves, a hybrid magnetic
source disc magnetorheological valve is proposed. The magnetic pressure drop model and viscous pressure drop
model of the hybrid magnet source disc type magnetorheological valve based on the Bingham model are
Derived. Magnetic field distributions in the damping channel of the hybrid magnet source disc type magnetorheological
valve are obtained by using ANSYS finite element analysis software. The mathematical model of the
relationship between pressure drop and magnetic induction intensity was established using Matlab software,
and the effects of parameters such as effective current, axial damping gap, radial damping gap, and coil width
on the pressure drop performance of disc-type magnetorheological valves with hybrid magnetic sources were
numerically analyzed. The results show that the pressure drop of the disc magnetorheological valve with a
hybrid magnetic source can reach 10.9935 MPa at the current I=3A, axial damping gap ga=1 mm, and radial
damping gap gr=1.5 mm. Compared with the conventional disc magnetorheological valve, the pressure drop
performance of the hybrid magnetic source disc magnetorheological valve is improved by 28 %, which provides
ideas on how to improve the pressure drop performance of the magnetorheological valve.