基于Bingham本构模型的长行程磁流变缓冲器仿真与实验研究  

Research of Simulation and Experimental For The Long Stroke Magneto Rheological Buffer Based on Bingham Constitutive Model

作　　者：魏叶萌 吴钢[1] 汤智胤[1] 李想[1] 毕柯[1] WEI Yemeng;WU Gang;TANG Zhiyin;LI Xiang;BI Ke(Naval University of Engineering, Wuhan 430033)

机构地区：[1]海军工程大学,武汉430033

出　　处：《现代制造技术与装备》2016年第11期66-68,共3页Modern Manufacturing Technology and Equipment

基　　金：国防科技重点实验室基金(9140C840201130C84282);海军工程大学自然科学基金(HGDQNJJ13010)

摘　　要：以某型高冲击载荷长行程旁通式磁流变缓冲器为研究对象,基于Bingham本构模型,建立该型磁流变缓冲器的力学模型。利用有限元方法对缓冲器磁流变阀进行磁场分析,求得其间隙的磁通密度。对该缓冲器进行冲击制动实验,得到不同磁场、不同活塞速度下缓冲力的变化规律。研究表明:长行程旁通式磁流变缓冲器缓冲力调节范围大,响应快,实验结果与仿真有较好的一致性。Research is on a high impact load long strokebypass type magneto rheological buffer, Based on Binghamconstitutive model, the mechanical model of this type of magnetorheological buffer is established. Using the finite element method,the magnetic field of the buffer is analyzed, and the magnetic fluxdensity of the gap is obtained. After the impact of buffer brakingexperiment, the damping force of different magnetic field underdifferent piston speed is obtained. Research shows: The long strokebypass type magneto rheological buffer has the advantages of largeadjustment range and fast response, and the experimental resultsare in good agreement with the simulation.

关 键 词：磁流变缓冲器 ANSYS 阻尼特性 冲击缓冲实验 

分 类 号：TB381[一般工业技术—材料科学与工程] TB535[理学—物理]