Theoretical calculation model of torque transmission in permanent-magnet couplers

被引：5
作者：
Shi, Jianwen [1 ]
Suo, Shuangfu [1 ]
Meng, Guoying [2 ]
机构：
[1] Tsinghua Univ, Sch Mech Engn, Beijing 100084, Peoples R China
[2] China Univ Min & Technol Beijing, Sch Mech Elect & Informat Engn, Beijing 100084, Peoples R China
来源：
AIP ADVANCES | 2021年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
EDDY-CURRENT COUPLINGS; SKIN; DESIGN; FIELD;
D O I：
10.1063/5.0033180
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Permanent-magnet couplers are widely used in various industrial applications due to their high functionality and economy. The magnetic field of the magnetic circuit of a permanent-magnet coupler is divided by the segmentation method, by which the magnetoresistance of each area can be calculated. The magnetic resistance of the magnetic flux and the permanent-magnet coupler characteristics outside the magnetic circuit are obtained using the equivalent magnetic circuit model of permanent-magnet couplers. The working point of the permanent magnet is analyzed, and the skin effect is found to be equivalent to a conductor plate with an increase in its resistivity. According to the principle of electromagnetic induction, the ampere force received by each part is calculated. Finally, the theoretical calculation model of the transmitted torque of the permanent-magnet coupler is obtained, and its accuracy is verified by finite element simulation and experiments. This can significantly guide the design and engineering applications of permanent-magnet couplers.
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页数：10
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