Development and Validation of Numerical Magnetic Force and Torque Model for Magnetically Levitated Actuator

To decouple the multi-axis motion in the 6 degrees of freedom magnetically levitated actuators (MLAs), this paper introduces a numerical method to model the force and torque distribution. Taking advantage of the Gaussian quadrature, the concept of coil node is developed to simplify the Lorentz integ...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 2019-01, Vol.55 (1), p.1-9
Main Authors: Xu, Fengqiu, Peng, Ruotong, Zheng, Tong, Xu, Xianze
Format: Article
Language:English
Subjects:
Actuators
Axis movements
Coils
Coordinate transformations
Force
Force distribution
Magnetic and coil nodes
Magnetic fields
Magnetic flux
Magnetic forces
Magnetic levitation
magnetically levitated actuator (MLA)
Magnetism
Magnetomechanical effects
Mathematical analysis
Mathematical models
motion decoupling
Multiaxis
Nodes
Normal distribution
Numerical analysis
numerical magnetic force and torque model
Numerical methods
Numerical models
Numerical prediction
Remanence
Stress concentration
Torque
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To decouple the multi-axis motion in the 6 degrees of freedom magnetically levitated actuators (MLAs), this paper introduces a numerical method to model the force and torque distribution. Taking advantage of the Gaussian quadrature, the concept of coil node is developed to simplify the Lorentz integral into the summation of the interaction between each magnetic node in the remanence region and each coil node in the coil region. Utilizing the coordinate transformation in the numerical method, the computation burden is independent of the position and the rotation angle of the moving part. Finally, the experimental results prove that the force and torque predicted by the numerical model are rigidly consistent with the measurement, and the force and torque in all directions are decoupled properly based on the numerical solution. Compared with the harmonic model, the numerical wrench model is more suitable for the MLAs undertaking both the translational and rotational displacements.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2018.2879872