External Coil Magneto-Rheological Damper Magnetic Circuit Analysis and Improvement

This paper proposes a sealed single pole gap and damping channel MR fluid absorber with multi-ring groove structure, which has external excitation coil, and analyzes the magnetic circuit and experimental results of this structure. The study establishes the electromagnetic finite element analysis model and analyzes the magnetic structure by ANSYS finite element analysis software. Then according to analysis results, improves the magnetic circuit model to be a new type of magnetic structure model. The simulation results show that the electromagnetic utilization of this model is higher than the original one.