Study on the Performance of Multi-circular Magnetorheological Fluid Transmission
In view of the shortcomings of the small transmission torque of the magnetorheological fluid transmission device,a multi-circular magnetorheological fluid transmission structure was proposed.The magnetic field of the transmission device was analyzed by the finite element method,and the influence of the arc radius and the excitation coil current on the magnetic field strength of the transmis-sion device was obtained.The magnetic field strengths of the multi-circular and the cylindrical working gap were compared,and the rela-tionship between the magnetic field strength of the transmission device and the axial distance was obtained.The relationship between the transmission torque of the multi-circular magnetorheological fluid and the arc radius,the shear yield stress and the angular velocity was established.The results show that the arc radius has a significant effect on the magnetic field strength of the transmission,and the larger the arc radius is,the more uneven the distribution of the magnetic field strength is;the torque of the transmission increases with the in-crease of the excitation coil current;when the current Iis 3 A,the output torque of the multi-circular magnetorheological fluid transmis-sion is 52.47 N·m,and the output torque of the cylindrical type is 37.76 N·m,the former is 38.96%higher than the latter,and the im-provement effect is significant.
magnetorheological fluidmulti-circular typefinite element analysistorque
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