Research on Improving Design Efficiency of Coaxial Magnetic Gear Based on Linear Model

doi:10.16182/j.issn1004731x.joss.24-0125

Abstract

Abstract:

To address the issues of large model computation load and cumbersome magnetization direction setting during the simulation design of coaxial magnetic field modulation type magnetic gears, a simplified design method is proposed, which uses a linear model to replace the original conventional circular ring model. Based on the periodicity of the structure and magnetic field of each part of the magnetic gear, the modeling work is simplified and the computational load of the simulation analysis is reduced. The results show that compared with the circular ring structure, the number of magnetization coordinate system settings for the linear structure is reduced by more than 85%. When the number of inner ring magnetic poles of the magnetic gear exceeds 4 pairs, the time for finite element analysis of a single model is significantly shortened, and the improvement effect becomes more significant as the number of magnetic poles increases.

Key words: coaxial magnetic gear, finite element simulation analysis, linear model, design simplification, field modulation

CLC Number:

TP391.9

Zhao Shuguang, Chen Ce, Xie Xiaochang, Li Fuping, Han Jin. Research on Improving Design Efficiency of Coaxial Magnetic Gear Based on Linear Model[J]. Journal of System Simulation, 2025, 37(6): 1574-1581.

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主要参数	圆环模型Ⅰ	圆环模型Ⅱ	圆环模型Ⅲ	圆环模型Ⅳ	圆环模型Ⅴ
P_i	5	3	7	9	11
R₁/mm	70	38	102	134	166
R₂/mm	80	48	112	144	176
P_s	36	22	50	65	79
R₃/mm	81.5	49.5	113.5	145.5	177.5
R₄/mm	84.5	52.5	116.5	148.5	180.5
P_o	31	19	43	56	68
R₅/mm	85.5	53.5	117.5	149.5	181.5
R₆/mm	90	58	122	154	186
L/mm	50	50	50	50	50

模型	模型大小	网格数	坐标系数量	t/min	F_max/N	δ/%
直线模型	3	71 754	6	52	792
圆环模型Ⅰ	5	105 292	154	63	795	0.4
圆环模型Ⅱ	3	62 322	94	40	801.6	0.8
圆环模型Ⅲ	7	133 212	42	71	798.8	0.4
圆环模型Ⅳ	9	167 144	54	95	800	0.6
圆环模型Ⅴ	11	208 010	66	111	796.5	0.2

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