中文摘要：

对三相十二槽蜗杆内定子、8磁齿行星轮的超环面机电传动实验样机的蜗杆内定子磁场进行了解析计算与有限元仿真分析,得到了蜗杆内定子磁场的分布规律。根据毕奥-萨伐尔定律和传动结构参数关系,完成了蜗杆内定子磁场的解析计算。采用有限元软件对蜗杆内定子磁场进行了仿真分析,仿真结果证明了解析计算的正确性。结果表明,蜗杆内定子磁场呈现出明显的四极特性,磁场旋转角度值与齿槽扭转角度值相同,且气隙有效控制范围为2 mm。

英文摘要：

The magnetic field of the worm inner-stator of toroidal electromechanical transmission experiment prototype was analyzed through calculation and finite element simulation. The distribution of worm inner-stator magnetic field was presented in this paper. According to the Biot-Savart law and the relationship between structural parameters, the magnetic field of worm inner-stator was calculated. Simulation of the magnetic field in the worm inner-stator was analyzed using the finite element software. The simulation results verified the validity of the calculation and the distribution of magnetic field. The results showed that the magnetic field of worm inner-stator has two pairs of magnetic poles, the rotating angle of magnetic field and the torsion angle of slot take the same value, and the air gap size should be controlled below 2 mm.