摘要
为了在有限的空间内获得更大的压降,提出一种双磁路混合流动式磁流变阀,并计算磁阻和压降。以Bingham模型为基础,对磁流变液的剪切速率-剪切应力曲线进行参数辨识,得到不同磁感应强度下2个参数的变化趋势,并将结果通过插值方式导入COMSOL软件中进行仿真计算。采用多物理场耦合仿真,对不同电流下磁流变阀的磁感应强度分布、阀内磁流变液流动情况以及压降变化进行了分析,同时讨论了结构设置对磁流变阀性能的影响。仿真结果表明:阀内的压降随外加电流的增加而增加;当电流达到2 A时,磁流变阀的进出口压降可达到4.06 MPa;在相同的条件下,与无隔磁环的磁流变阀相比,有隔磁环的磁流变阀的压降提高了约5%。
To achieve a greater pressure drop within a limited space,a novel dual magnetic circuit hybrid flow magnetorheological(MR)valve was proposed,the magnetic reluctance and pressure drop were also calculated.The Bingham model was utilized to identify parameters for shear rate and shear stress relationships measured by the rheometer.The trends of these two parameters under different magnetic flux densities were obtained,and these data were imported into COMSOL software for simulation calculations using interpolation method.The distributions of magnetic flux density,fluid flow and pressure drop under different currents were analyzed using multi-physical coupling simulation.The influences of structure settings on the performance of MR valve were also analyzed.The simulation results show that pressure drop increases with the increment of applied current;when the current reaches 2 A,the pressure drop can reach 4.06 MPa;additionally,the MR valve with a spacer ring exhibits approximately 5%increase in pressure drop compared to the valve without a spacer ring.
作者
李品烨
胡国良
朱文才
喻理梵
舒慧杰
LI Pinye;HU Guoliang;ZHU Wencai;YU Lifan;SHU Huijie(School of Mechatronics and Vehicle Engineering,East China Jiaotong University,Nanchang Jiangxi 330013,China)
出处
《机床与液压》
北大核心
2024年第24期160-164,共5页
Machine Tool & Hydraulics
基金
国家自然科学基金地区科学基金项目(52165004)
江西省国际科技合作重点项目(20232BBH80010)
江西省教育厅科学技术研究项目(GJJ210629)
江西省自然科学基金项目(20224BAB214081)。
关键词
磁流变阀
磁路设计
压降
参数辨识
多物理场耦合仿真
MR valve
magnetic circuit design
pressure drop
parameter identification
multi-physical coupling simulation
