电磁挤压的多盘式磁流变液传动性能研究  

Exploring Transmission Performance of Multi-disc Magnetorheological Fluid by Electromagnetic Extrusion

作　　者：邱锐 熊洋 黄金 QIU Rui;XIONG Yang;HUANG Jin(College of Mechanical Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学机械工程学院,重庆400054

出　　处：《机械科学与技术》2022年第11期1658-1664,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51875068)。

摘　　要：针对高转矩磁流变液装置结构复杂及使用场景受限等问题,提出了一种电磁挤压的多盘式磁流变液传动方法,利用励磁线圈通电后产生的电磁力对磁流变液进行挤压,使其在传递高转矩的同时,装置的结构更加简单紧凑。利用Maxwell和Abaqus对装置进行了磁场及结构场有限元分析,计算得到了不同输入电流下磁流变液的剪切屈服应力、电磁力以及各工作间隙内磁流变液所受挤压应力;分析了磁流变液在受到挤压强化后的剪切屈服应力,并计算得出装置所能传递的转矩。对比实验表明:利用电磁挤压,磁流变液的传动性能显著增强,在3 A输入电流、7 241.4 N电磁力时,相较于未挤压状态,装置传递转矩提升了约78.6%。In order to solve the problems of complex structure and limited use scene of high-torque magnetorheological fluid(MRF)device, this paper proposes a method of multi-disc MRF transmission through electromagnetic extrusion. The method uses the electromagnetic force generated after the excitation coil is electrified to squeeze the MRF, so that the structure of the MRF device is simpler and more compact while transmitting high torque. The Maxwell software and ABAQUS software were used to analyze the magnetic field and structural field of the MRF device. Shear yield stress, electromagnetic force and extrusion stress of MRF in each working gap under different input current were calculated;shear yield stress of MRF after extrusion was analyzed, and the torque transmitted by the MRF device was calculated. The comparison of experimental results shows that the transmission performance of the MRF device is significantly enhanced with electromagnetic extrusion. When 3 A input current and 7 241.4 N electromagnetic force are applied, the transmission torque of the MRF device increases by 78.6% compared with the non-extrusion state.

关 键 词：磁流变液 电磁挤压 多盘 高转矩 

分 类 号：TH132[机械工程—机械制造及自动化]