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Home > Issues > SearchMagnetic Field Model of Macro-motion of Coaxial Integrated Macro-micro Composite Actuator
Journal of Magnetics, Volume 26, Number 1, 31 Mar 2021, Pages 79-86
Caofeng Yu * 
(School of Mechanical Engineering, Anhui University of Science and Technology), Zhuo Chen (School of Mechanical Engineering, Anhui University of Science and Technology), Meijun Xiong (School of Mechanical Engineering, Anhui University of Science and Technology), Yu Wang (School of Mechanical Engineering, Anhui University of Science and Technology), Rui Shi (School of Mechanical Engineering, Anhui University of Science and Technology), Xiaoxiang Sun (School of Mechanical Engineering, Anhui University of Science and Technology)
(School of Mechanical Engineering, Anhui University of Science and Technology), Zhuo Chen (School of Mechanical Engineering, Anhui University of Science and Technology), Meijun Xiong (School of Mechanical Engineering, Anhui University of Science and Technology), Yu Wang (School of Mechanical Engineering, Anhui University of Science and Technology), Rui Shi (School of Mechanical Engineering, Anhui University of Science and Technology), Xiaoxiang Sun (School of Mechanical Engineering, Anhui University of Science and Technology)
Abstract
Aiming at the problem of short stroke of giant magnetostrictive actuator (GMA), a design scheme of coaxial
integrated macro-micro composite actuator is proposed by combining the long-stroke characteristics of voice
coil motor with the high-precision characteristics of giant magnetostrictive actuator. Based on its structure composition
and working principle, the magnetic field model of macro-motion of macro-micro composite actuator
is established based on the analysis method of circuit, and the change characteristics of the driving magnetic
field are obtained. The finite element method is used to verify the magnetic circuit characteristics. The results
show that the magnetic circuit variation characteristics of the proposed coaxial integrated macro-micro composite
actuator are consistent with the theoretical calculation results, and are consistent with the expected working
process of this actuator, which indicates that the established magnetic field model is correct, and that the
proposed coaxial integrated design scheme of the macro-micro composite actuator is feasible.
integrated macro-micro composite actuator is proposed by combining the long-stroke characteristics of voice
coil motor with the high-precision characteristics of giant magnetostrictive actuator. Based on its structure composition
and working principle, the magnetic field model of macro-motion of macro-micro composite actuator
is established based on the analysis method of circuit, and the change characteristics of the driving magnetic
field are obtained. The finite element method is used to verify the magnetic circuit characteristics. The results
show that the magnetic circuit variation characteristics of the proposed coaxial integrated macro-micro composite
actuator are consistent with the theoretical calculation results, and are consistent with the expected working
process of this actuator, which indicates that the established magnetic field model is correct, and that the
proposed coaxial integrated design scheme of the macro-micro composite actuator is feasible.
Keywords: magnetic field model; giant magnetostrictive actuator; voice coil motor; coaxial integrated; actuator
DOI: https://doi.org/10.4283/JMAG.2021.26.1.079
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