圆盘式与圆筒式磁流变制动器制动转矩研究  

Study on Braking Torque of Disc Type and Cylinder Type Magnetorheological Fluid Brake

作　　者：黄金[1] 周轶[1] 王西[1] HUANG Jin;ZHOU Yi;WANG Xi(Chongqing University of Technology,Chongqing 401135,China)

机构地区：[1]重庆理工大学,重庆401135

出　　处：《机械设计与制造》2020年第4期71-74,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51175532,11602041)。

摘　　要：基于磁流变液的磁流变效应,介绍了圆盘式及圆筒式磁流变制动器的制动原理,推导了所需磁流变液体积公式,建立了磁流变制动器的磁路模型。应用ANSYS软件对磁路模型进行有限元磁场仿真,得到了磁感应强度云图和磁感应强度分布曲线。最后基于两种磁流变制动器的结构特点,分别计算并比较了它们的制动转矩大小。结果表明:当所使用磁流变液的材料、体积及励磁线圈匝数、通入电流大小相同的情况下,圆筒式磁流变制动器的制动转矩要比圆盘式磁流变制动器大50%左右。Based on the magnetorheological effect of magnetorheological fluid(MRF),the braking principle of disc and cylin-der MRF Brake is introduced.The volume formula of MRF is derived,and the magnetic circuit model of MRF Brake is established.ANSYS software is used to simulate the magnetic circuit model,then the magnetic induction intensity nephogram and magnetic induction intensity distribution curve are obtained.Finally,the braking torque is calculated and compared based on the structural characteristics of two kinds of MRF brake.The results show that the brake torque of the cylindrical MRF Brake is greater than that of the disc magnetorheologicalbrakeabout 50%when the material and volume of MRF are same,the excitation coil turns and the incoming current are equal.

关 键 词：磁流变液 磁流变制动器 有限元磁场仿真 制动转矩 

分 类 号：TH16[机械工程—机械制造及自动化]