Abstract：To investigate output torque of deep bar squirrel cage rotor asynchronous magnetic coupling in working, the transient air gap magnetic field was simulated. Based on the transient theoretical analysis of asynchronous magnetic coupling, the effects of magnetic pole numbers, permanent magnet thicknesses, air gap lengths, slot numbers of inner rotor and width-length ratios of slot （the ratio of the slot width and the slot depth）on the transient air gap magnetic field were analyzed by 2D and 3D simulation in Ansoft Maxwell. The experiments were conducted to verify the 3D simulation analysis. The results show that the optimal value of output torque can be oabtained in a certain outside diameter with magnetic poles of 14, permanent magnet thickness of 8 mm, slot number of 24 and slot widthlength ratio of 0.42. The output torque is markedly affected by slot depth with maximum torque for slot depth of 18 mm. The conclusions have guiding significance for further optimizing of deep bar squirrel cage rotor asynchronous magnetic coupling.
杨超君, 芦玉根, 李志宝, 胡友, 管春松. 深槽鼠笼异步磁力联轴器瞬态气隙磁场有限元分析[J]. 江苏大学学报（自然科学版）, 2012, 33(2): 193-198.
YANG Chaojun, LU Yugen, LI Zhibao, HU You, GUAN Chunsong. Finite element analysis of transient air gap magnetic field for deep bar squirrel cage asynchronous magnetic coupling[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2012, 33(2): 193-198.
2012, Vol. 33 
