电磁制动器电磁吸力解析计算与设计优化  

Analytical Calculation and Design Optimization of Electromagnetic Suction for Electromagnetic Brake

作　　者：陈博闻 吴建华[1] 孙庆国 沈梦杰 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]浙江方正电机股份有限公司乘用车电机研发部,丽水323000

出　　处：《日用电器》2018年第11期128-134,共7页ELECTRICAL APPLIANCES

摘　　要：本文分析了摩擦盘式电磁制动器的工作原理与磁路结构,推导了电磁制动器电磁吸力的解析计算公式,定义了电磁吸力密度的概念,提出了一种最大电磁吸力密度的结构优化方法。通过优化内外吸力环中磁密,使两者相等,实现电磁吸力密度的最大化。为验证解析计算结果的准确性与优化方案的有效性,以一台6 N·m电磁制动器为仿真与优化对象,进行二维与三维有限元分析。仿真验证了电磁吸力解析计算结果的准确性以及最大电磁吸力密度结构优化方法的有效性。In this paper,operation principles and magnetic circuit of friction disc-based electromagnetic brake are analyzed.The concept of electromagnetic suction density is defined,and the analytical formula of electromagnetic suction is deduced for electromagnetic brake.A structure optimization method of maximum electromagnetic suction density is proposed.To maximize the electromagnetic suction density,the magnetic flux densities in the inner and outer suction annulus are optimized to be equal.In order to verify the accuracy of analytical calculation results and effectiveness of the proposed optimization scheme,the 2D and 3D finite element analysis(FEA)simulations are carried out based on a 6N·m electromagnetic brake.The accuracy of analytical results of electromagnetic suction and effectiveness of the maximum electromagnetic suction density structure optimization method are validated by simulation results.

关 键 词：电磁制动器 磁路计算 电磁场仿真 优化设计 电磁吸力密度 

分 类 号：TH134[机械工程—机械制造及自动化]