永磁体和线圈叠加下多极式磁流变离合器的设计研究  

Design and research of multipole magnetorheological clutch with permanent magnet and coil superposition

作　　者：黄禹铭 吴杰 邓兵兵 HUANG Yuming;WU Jie;DENG Bingbing(School of Mechanical Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]西华大学机械工程学院,成都610039

出　　处：《现代制造工程》2022年第10期119-124,157,共7页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51805444)。

摘　　要：针对目前磁流变离合器传递扭矩较小,提出一种永磁体和线圈叠加下多极式磁流变离合器,该结构通过线圈和永磁体产生的2个叠加磁场来增强工作间隙的磁感应强度。首先,基于结构参数及尺寸,结合Bingham模型,推导了该多极式磁流变离合器的输出扭矩计算公式,并针对磁路结构的关键参数开展了参数化研究;然后,采用梯度自由优化(Bound Optimization BY Quadratic Approximation,BOBYQA)算法对磁路结构的主要参数进行优化,并将优化值与初始值进行对比;最后采用有限元仿真,分析该多极式磁流变离合器工作间隙的磁感应强度大小以及磁场分布情况。结果表明,优化后该离合器的输出扭矩较优化前提升了27%,最大输出扭矩值约为118.36 N·m,为永磁体和线圈叠加下多极式磁流变离合器的设计提供参考。A multipole magnetorheological clutch with permanent magnet and coil superposition was proposed to solve the problem of small transfer torque of current magnetorheological clutch.The magnetic field intensity of the working gap was enhanced by superimposing two magnetic fields generated by the coil and permanent magnet.Firstly,based on the structural parameters and dimensions,combined with the Bingham model,the calculation formula of the output torque of the multipole magnetorheological clutch was deduced,and parameterized research was carried out on the key parameters of the magnetic circuit structure.Then,BOBYQA optimization method was used to optimize the main size of the magnetic circuit structure,and the optimized value was compared with the initial value.Finally,finite element simulation was used to analyze the magnetic flux intensity and magnetic field distribution of the working gap of the structure.The results show that the output torque of the clutch is increased by 27%after optimization,and the maximum output torque is about 118.36 N·m.The research can provide a reference for the design of multipole magnetorheological clutch with permanent magnet and coil superposition.

关 键 词：多极 磁场叠加 磁流变离合器 优化 输出力矩 

分 类 号：TH139[机械工程—机械制造及自动化]