Magnetic Modeling, Theory and Computation

2012 ◽  
Keyword(s):  
Magnetic Modeling ◽  
Modeling Theory

Magnetic Modeling, Theory, and Computation

2021 ◽  
pp. 1015-1029
Author(s):  
Mioara Mandea ◽  
Carmen Gaina ◽  
Vincent Lesur
Keyword(s):  
Magnetic Modeling ◽  
Modeling Theory

A new magnetic modeling method for magnetic levitation rotary table

2021 ◽  
pp. 1-18
Author(s):  
Yongxing Gong ◽  
Fengqiu Xu ◽  
Xianze Xu ◽  
Kaiyang Zhang
Keyword(s):  
Magnetic Field ◽  
Optimization Design ◽  
Magnetic Force ◽  
Integral Formula ◽  
Translational Motion ◽  
Modeling Method ◽  
Magnetic Flux Density ◽  
Rotary Table ◽  
Harmonic Method ◽  
Magnetic Modeling

Precision machining fields require the worktable to have a large-scale multi-degree-of-freedom motion capability. In order to provide a more accurate magnetic model for the control strategy decoupling process and the size parameter optimization design process of the maglev rotary table. This paper proposes a new magnetic modeling method based on the Two-Dimensional Harmonic method. Different from the existing harmonic method, this method simultaneously considers the tangential and radial magnetic field changes of circumferential magnetic array. And it eliminates the edge effect of the magnetic flux density distribution in the radial aperiodic direction. The magnetic force and torque are solved by the Lorenz integral formula and the Gaussian quadrature method. In order to verify the accuracy of the TDH method, the boundary element software RadiaTM is used for simulation, and a prototype is made for measurement. The experimental results shown that this method reduced the maximum error of the radial edge magnetic field from 104.19% to 3.29%. And it improved the calculation accuracy of magnetic force and torque by 60.74% and 84.39% respectively. This method does not rely on special example, and is beneficial to cross-platform applications. It is more suitable for realizing the magnetic modeling of the maglev rotary table with both rotational motion and large-stroke translational motion.

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