华东交通大学学报2025，Vol.42Issue(1)：97-104,8.
各向同性磁流变弹性体性能测试及研究
Performance Testing and Analysis of Isotropic Magnetorheological Elastomer
摘要
Abstract
In order to obtain the trend of the properties of magnetorheological elastomer(MRE)with the applied magnetic flux density and excitation frequency,MREs with different ratios were prepared to investigate the rela-tive MR effects and shear modulus properties.Three kinds of MRE samples were prepared based on the silicone rubber and silicone oil mass fraction ratio of 3∶2,and high viscosity silicone oil was selected to analyze the changes of energy storage modulus and shear modulus with magnetic flux density under oscillatory shear mode with different ratios,different shear strains,and shear frequencies,as well as the trends of MRE normal force un-der different preloads.The experimental results show that the energy storage modulus,shear modulus and nor-mal force of MRE increase with the increase of magnetic flux density.The results indicate that the maximum change of the MRE normal force increases by 31.6%when the preload is increased from 5 N to 25 N.When the magnetic flux density increases from 0 to 0.8 T,the maximum energy storage modulus of sample 3 is 2.25 MPa,with a maximum relative MRE effect of 1 465.60%,and the maximum shear modulus of sample 3 is 2.25 MPa,which is an increase of 1 400.00%compared to the zero-field case.This experiment shows that MRE is suitable for high-frequency and low-shear strain application,and iron powder with 80%mass fraction can effectively im-prove the mechanical properties of MRE.关键词
磁流变弹性体/储能模量/剪切模量/磁流变效应Key words
magnetorheological elastomer/energy storage modulus/shear modulus/magnetorheological effect分类
信息技术与安全科学引用本文复制引用
尧子健,胡国良,喻理梵,朱文才..各向同性磁流变弹性体性能测试及研究[J].华东交通大学学报,2025,42(1):97-104,8.基金项目
国家自然科学基金项目(52165004) （52165004）
江西省国际科技合作重点项目(20232BBH80010) （20232BBH80010）
江西省自然科学基金项目(20242BAB25260) （20242BAB25260）
