Design and analysis of a 2-DoF split-stator induction motor

Jikai Si, Haichao Feng, Liwang Ai, Yihua Hu, Wenping Cao

Research output: Contribution to journalArticlepeer-review


A two degrees of freedom (2-DOF) actuator capable of producing linear translation, rotary motion, or helical motion would be a desirable asset to the fields of machine tools, robotics, and various apparatuses. In this paper, a novel 2-DOF split-stator induction motor was proposed and electromagnetic structure pa- rameters of the motor were designed and optimized. The feature of the direct-drive 2-DOF induction motor lies in its solid mover ar- rangement. In order to study the complex distribution of the eddy current field on the ferromagnetic cylinder mover and the motor’s operating characteristics, the mathematical model of the proposed motor was established, and characteristics of the motor were ana- lyzed by adopting the permeation depth method (PDM) and finite element method (FEM). The analytical and numerical results from motor simulation clearly show a correlation between the PDM and FEM models. This may be considered as a fair justification for the proposed machine and design tools.
Original languageEnglish
Pages (from-to)1200-1208
Number of pages9
JournalIEEE Transactions on Energy Conversion
Issue number3
Early online date19 Apr 2015
Publication statusPublished - Sept 2015

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  • finite element method
  • induction motor
  • permeation depth method
  • solid rotor
  • two de- grees of freedom


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