圆筒式永磁联轴器磁场仿真分析及结构优化设计  

Magnetic field simulation analysis and structural optimization design of cylindrical magnetic coupling

作　　者：李光俊 郭和一 徐磊 闫雪兰[2] 赵引瑞 LI Guang-jun;GUO He-yi;XU Lei;YAN Xue-lan;ZHAO Yin-rui(China Nuclear Power Engineering Co,Ltd,Beijing 100840,China;Institute of Magnetic Devices,Gansu Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]中国核电工程有限公司,北京100084 [2]甘肃省科学院磁性器件研究所,甘肃兰州730000

出　　处：《磁性材料及器件》2020年第3期33-36,42,共5页Journal of Magnetic Materials and Devices

摘　　要：为确保乏燃料后处理厂混合澄清槽搅拌装置的永磁联轴器长期安全可靠运行,对永磁联轴器进行磁场仿真分析及结构优化设计。采用有限元方法建立三维磁场仿真模型,建模过程充分考虑联轴器的实际运行工况。首先,考察磁极对数、磁极厚度、磁场气隙、磁转角对磁转矩的影响。其次,通过温度场仿真分析考察转速对联轴器温升的影响。最后,以降低联轴器的隔离套温升为目标,对其进行结构优化设计并进行仿真分析。结果表明:优化结构的隔离套温升得到明显减小。控制联轴器温升可有效降低永磁联轴器退磁失效风险。研究成果可为同类型联轴器设计提供参考。In order to ensure the long-term safe and reliable operation of the magnetic coupling of the mixer settler stirring device in spent fuel reprocessing plant,the magnetic field simulation analysis and structural optimization design of the magnetic coupling are carried out in this paper.Finite element method was used to establish a three-dimensional magnetic field simulation model and the model takes full account of the actual operating conditions of the coupling.Firstly,the influence of the numbers and thickness of magnetic poles,the length of magnetic field air gap and the magnetic rotation angle on magnetic torque was analyzed.Secondly,the influence of the rotational speed on the temperature rise was discussed based on the simulation analysis of the temperature field.Finally,the magnetic coupling structure is optimized and simulated with the goal of reducing the temperature rise of the isolating sleeve of the magnetic coupling,and the results show that the temperature rise of the isolating sleeve is significantly reduced.Controlling the temperature rise of the coupling can effectively reduce the risk of demagnetization failure of the magnetic coupling.The research results can provide reference for the same type of coupling design.

关 键 词：永磁联轴器 磁转矩 磁场仿真 温度场仿真 结构优化设计 

分 类 号：TM142[电气工程—电工理论与新技术] TH133.4[机械工程—机械制造及自动化]