隔磁环及导磁材料对磁流变液测功机磁路影响分析  

Effect of Magnetic Isolation Ring and Magnetic Permeability Material on Magnetic Circuit of Magnetorheological Fluid Dynamometer

作　　者：陈亚蒙 罗一平 任洪娟 魏丹 杨斌 Chen Yameng;Luo Yiping;Ren Hongjuan;Wei Dan;Yang Bin(Shanghai University of Engineering Science,Shanghai 201620,China;SAIC MAXUS,Shanghai 200082,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海市201620 [2]上汽大通汽车有限公司,上海市200082

出　　处：《农业装备与车辆工程》2020年第8期16-21,共6页Agricultural Equipment & Vehicle Engineering

基　　金：上海市地方院校能力建设项目(19030501100)。

摘　　要：磁路环境是制约磁流变液装置正常工作的最主要因素,良好的磁路环境使磁流变液测功机具有更佳的经济性和实用性。以新型磁流变液测功机为研究对象,利用Ansoft Maxwell软件对其进行磁场仿真,研究隔磁环和导磁材料对磁流变液测功机磁场性能的影响。通过搭建磁流变液加载磁场试验台架,对3种不同体积百分比的磁流变液样品进行磁场加载试验,相同电流下仿真结果与试验结果平均误差为8.9%,证明仿真方法的可行性。研究表明,体积分数对磁流变液工作间隙处的磁感应强度影响极其微小;磁流变液测功机工作间隙内磁感线分布较为均匀,磁感应强度在120~162 mT范围内,且不同影响因素对磁流变液测功机工作间隙内的磁感应强度有不同程度的影响。Magnetic circuit environment is the most important factor restricting the normal operation of the magnetorheological fluid(MRF)device.A good magnetic circuit environment can make the MRF dynamometer more economical and practical.A new MRF dynamometer is used as the research object.The magnetic field simulation is carried out by Ansoft Maxwell software to study the influence of magnetic isolation ring and magnetic permeability material on the magnetic field performance of MRF dynamometer.The magnetic field loading test was carried out on three different volume percent MRF samples by constructing a MRF loading magnetic field test bench.The average error between the simulation results and the test results at the same current was 8.9%,which proved the feasibility of the simulation method.The research shows that the volume fraction has little influence on the magnetic induction intensity at the working gap of the MRF;the magnetic induction line distribution in the working gap of the MRF dynamometer is relatively uniform,the magnetic induction intensity is in the range of 120~162 mT,and different influencing factors have different degrees of influence on the magnetic induction intensity in the working gap of MRF dynamometer.

关 键 词：磁流变液 加载磁场 测功机 磁路分析 有限元 

分 类 号：TB381[一般工业技术—材料科学与工程]