针对剪切阀式磁流变减震器,设计出了不同的磁路结构,其中磁路分级和电流方向是影响减震器磁场利用率、阻尼出力和调节范围的重要因素。为了得到这两个因素对减震器的综合影响结果,设计了几种不同的剪切阀式磁流变减震器模型,对其进行了磁路分析,比较了以上两个因素对磁场利用率的影响,并通过ANSYS软件仿真,验证了理论分析结论,得到了在相同加栽电流和尺寸条件下基于磁场利用率的最优结构。通过进一步建模分析,得到了基于不同阻尼出力和结构尺寸综合指标下的最优磁路方案。
Different magnetic circuit structures of shear-valve mode magnetorheological damper are designed by numbers of scholars, the classification and current direction of magnetic circuit are the key factors to affect the utili- zation rate of magnetic field, damping output and adjusting range. In order to get the comprehensive influence of these above factors on the utilization rate of magnetic field, several simple models of magnetorheological damper are designed, analyzed and compared. Theoretical analysis is verified by ANSYS simulation and optimal structure based on the utilization ratio of magnetic field is obtained under the condition of same loading current and size. Optimal magnetic circuit structure based on different damping output and structure size is obtained through further analysis.