中国电机工程学报2017，Vol.37Issue(15)：4521-4529,9.DOI:10.13334/j.0258-8013.pcsee.161385
利用子域法的永磁涡流联轴器解析建模分析
Analytical Modeling of Permanent Magnet Eddy Current Couplings Using the Subdomain Method
摘要
Abstract
Permanent magnet eddy current transmission devices can transfer torque without any mechanical contact and wear and thus they are widely applicable to many industrial applications.The Eulerian formulation and the Lagrangian formulation respectively corresponding to the moving conductor eddy current problem described in moving coordinates and that in fixed coordinates were derived,and the two formulations proved to be equivalent to each other.Based on the subdomain method,a four-layered analytical model of permanent magnet eddy current couplings where the permanent magnet array,the air gap,the conductor and its back iron were taken into account was presented,the multi-layer boundary value problem was solved,and a very simple torque expression represented by the Fourier series was derived.To economize the amount of permanent magnet material as much as possible,an optimization method for exploiting the permanent magnet array was proposed by using the developed analytical model of permanent magnet eddy current couplings.By analyzing the examples and comparing the results obtained by the three-dimensional finite element analysis and the experiments,the effectiveness of the analytical model and the optimization scheme proposed in this paper was verified.关键词
涡流联轴器/子域法/运动导体涡流问题/解析模型/永磁阵列优化Key words
eddy current coupling/subdomain method/moving conductor eddy current problem/analytical model/optimization of the permanent magnet array分类
信息技术与安全科学引用本文复制引用
王坚,林鹤云,房淑华,朱建国..利用子域法的永磁涡流联轴器解析建模分析[J].中国电机工程学报,2017,37(15):4521-4529,9.基金项目
国家自然科学基金项目(51247005,51577026) （51247005,51577026）
南京工程学院创新基金(CKJA201408,ZKJ201509).National Natural Science Foundation of China (51247005,51577026) （CKJA201408,ZKJ201509）
The Innovation Fund of Nanjing Institute of Technology (CKJA201408,ZKJ201509). （CKJA201408,ZKJ201509）
