摘要
利用磁流变流体在外加磁场作用下的流变特性,设计了用于气动位置控制的磁流变流体制动器,给出了制动器结构及工作原理,采用磁场有限元分析方法,对制动器工作间隙中磁场分布及磁场强度进行了分析和计算,对制动器制动力特性进行了分析,对工作间隙中磁场强度及制动力进行了实验测试,对制动器动态制动特性进行了试验研究,并给出了提高制动精度的方法。
By using the rheological property of magneto-rheological fluid （MRF） when it is exposed to a magnetic field, a MRF brake was developed to realize the pneumatic position control. The construction and working principles of the brake using MRF were introduced. The magnetic field distribution, magnetic flux density inside the working clearance, and the braking force of the brake were analyzed and calculated using finite element analysis method. The characteristics of magnetic flux density and the braking forces were tested. The dynamic experiments of braking response were carried out. The simulation and experimental results, as well as the method to improve the precision of pneumatic position control using MRF brake are given.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2005年第22期1998-2001,共4页
China Mechanical Engineering
基金
黑龙江省博士后基金资助项目
关键词
磁流变流体
流变特性
气动位置控制
制动器
magneto-rheological fluid
rheologcial property
pneumatic position control
brake
