3D Magnetic Field Finite Element Analysis of Dual-Stator PM Spherical Motor

In this paper, the three-dimensional magnetic field analysis of a dual-stator permanent magnet spherical motor is carried out by the finite element simulation software ANSYS. This method uses ANSYS Parametric Programming Language (APDL) to simulate the motor and then analyze the data through MATLAB. Parametric modeling involves building geometric models, assigning material properties and meshing, and then applying loads and boundary conditions to solve them. Compared with traditional Graphical User Interface (GUI) modeling methods, parametric analysis can modify parameters, analyze multiple sizes, adjust to achieve harmonic analysis, and successfully implement the function of 3D magnetic field analysis. The results verify that the method has high precision and high efficiency.

1 INTRODUCTION

With the rapid development of spherical motors and advances in finite element analysis techniques, there are very different methods for different spherical motor magnetic field analysis. Meanwhile, magnetic field analysis has also become an important part of spherical motor design. The finite element method has been applied to the establishment and analysis of magnetic fields, but the results are not accurate and efficient. In the design of spherical motors, it is very important to establish and analyze magnetic fields. The finite element analysis and data analysis of the new dual-stator spherical motor are important components of the magnetic field analysis, which can realize the three-degree-of-freedom motion in the space. In this paper, the parametric programming language and MATLAB simulation are used to analyze the distribution of the magnetic field flux density of the motor.