摘要
针对一台9对极盘式实心磁力耦合器,为研究其气隙磁场分布及转矩,引入层理论模型,将磁力耦合器划分为非导电区域和导电区域两部分,推导二维标量磁位法,求解非导电区域的标量磁位和导电区域的磁场强度,同时引入卡特系数进行校正,推导出盘式实心磁力耦合器的气隙磁密和输出转矩公式;然后,通过有限元软件模拟得到磁力耦合器的三维气隙磁场分布、涡流分布和输出转矩,并分析了不同工作参数对输出转矩的影响;最后,搭建三维气隙磁场测量试验平台和传动试验平台进行三维气隙磁场和转矩的试验,所得试验结果与理论计算结果、仿真结果基本吻合。结果表明,推导的气隙磁密和输出转矩公式具有较高的准确性,为进一步研究盘式实心磁力耦合器的传动特性提供参考。
In order to study the air gap magnetic field distribution and torque of axial-flux solid magnetic couplers with 9 pairs of permanent magnets,a layer model is firstly introduced,which divides the couplers into conductive and non-conductive areas.The two-dimensional magnetic scalar potential method is derived to solve the magnetic field strength in conductive areas and the magnetic scalar potential in non-conductive areas.Carter coefficient is introduced to correct the 3D end effects,and the formula of air gap flux density and torque is derived.Then,the distribution of 3D air gap magnetic field,eddy current and the influence of different working parameters on the characteristics of the torque are obtained by the finite element simulation software.Finally,a measure system of three-dimensional magnetic field and the magnetic drive experimental platform are built to measure the 3D air gap magnetic field and the torque.The experimental results are in good agreement with the results of theoretical calculation and the simulation analysis,which shows that the formula of the air gap flux density and the torque have high accuracy and can be used as a reference for further research on the transmission characteristics of eddy-current magnetic couplers.
作者
杭天
杨超君
朱继伟
丁逸飞
王剑
Hang Tian;Yang Chaojun;Zhu Jiwei;Ding Yifei;Wang Jian(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)
出处
《机械传动》
北大核心
2024年第1期111-119,共9页
Journal of Mechanical Transmission
基金
国家自然科学基金项目(51875254)。
关键词
盘式实心磁力耦合器
气隙磁场
转矩
二维标量磁位法
涡流
Axial-flux solid magnetic coupler
Air gap magnetic field Torque
Two-dimensional magnetic scalar potential method
Eddy current
