铁芯用于使放置在转子和定子中的线圈（由导体构成）之间的耦合最大，以增加电机的磁通密度以及减小电机尺寸。
The iron core is used to maximize the coupling between the coils (formed by conductors) placed on the stator and rotor, to increase the flux density in the machine and to decrease the size of machine.
在内外定子主要尺寸、磁路结构、绕组设计讨论的基础上，完成了该电机的电磁设计。
After discussing stator size, magnetic circuit and winding design, the electromagnetic design of the motor was presented.
通过对有限元模型进行模态分析和机电耦合分析，探讨了定子换能器的固有频率和定子结构尺寸以及两者之间的关系。
Through simulative analysis of finite element model and mechanical-electric coupled, the natural frequency of stator energy converter and stator's dimensions and their relation were discussed.
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