Magnetorheological elastomer is a new type of intelligent magnetic control material composed of elastomer matrix and magnetic particles. Pre-structured processing can improve the magnetic properties of MRE

but there are few studies on pre-structured MRE. In engineering

large magnetic field is often used for pre-structured processing

which is not only costly but also inefficient. Therefore

a MRE pre-structure device and explores its influence on the magnetic properties of MRE force is designed. Firstly

the simulation model is established by using SOLIDWORKS. Secondly

theoretical analysis and ANSYS electromagnetic simulation are carried out. Then

the theoretical model is modified via experiments

and the influence of the device on the magnetic properties of MRE force is explored. Finally

the effectiveness of the device is tested by observing the microstructure of MRE. The results show that the device can provide an adjustable magnetic field of 0-1.5 T for MRE

which meets the requirements of MRE pre-structure and has low cost

and the utilization rate of magnetic field can reach 83.33%. The theoretical model of the device is modified by introducing magnetic flux leakage reluctance. The modified model can accurately characterize the magnetic field strength in the MRE region

and the average error is only 0.88%. This device can effectively improve the magnetic properties of MRE force

and the improvement effect is affected by the content of magnetic particles. When the particle content is 80%

the magnetorheological effect is increased by 54.68%

the content is reduced to 40%

the improvement effect is obviously enhanced

and the magnetorheological effect is increased by 91.79%. The effectiveness of the device was tested from the perspective of microstructure by using SEM electron microscopy. The particles in MRE formed an obvious chain structure

and the pre-structure effect was better.