Abstract
In the driving system of hydraulic robot, the mechanical components are large and complex due to some factors such as material performance and structural design. Based on the magnetorheological properties of ferrofluid, a novel hydraulic driver method is presented based on the principle of jet pipe servo valve. Adding a magnetic field in the air field of the valve body directly controls the deflection and offset of the ferrofluid, and realizes the directly control from the electric/magnetic to fluid. The mathematical model of ferrofluid flows in the air field under magnetic field is established based on the ferrohydrodynamics(FHD).The experimental results show that the millimeter-level deflection has met the actual engineering needs of the hydraulic driving system.
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