Abstract
This paper presents the design and analysis of electromagnetic field distribution and torque characteristics of a novel three degrees of freedom deflection type permanent magnet actuator based on 3D finite element method and comparison analysis. The spatial magnetic field model, torque calculation model and 3D finite element application are presented and developed. Based on the calculation results, some important structure parameters' effects on the electromagnetic field and torque characteristics are discussed in detail with improved design schemes. The results provide the primary theoretical guide for the configuration design, optimization and control research of three degrees of freedom deflection type actuators.
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