Numerical Calculation of the Magnetic Field and Force in Cylindrical Single-Axis Actuator

Author

Fengqiu Xu ; Xianze Xu ; Zhongbing Li ; Liang Chu

Author_Institution

Sch. of Electr. Inf., Wuhan Univ., Wuhan, China

Volume

50

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

1

Lastpage

6

Abstract

This paper investigates a kind of cylindrical linear single-axis actuator that is used in the magnetic levitation stage to provide fine movement. The magnetic flux density distribution due to the permanent magnet is determined using the surface charge method, and the magnitude of force generated by the actuator is calculated using the Lorentz force equation. Both of them can be solved by numerical integration. The results are verified by measurements. The magnetic force components are fitted as an analytical style that can be used in the real-time controlling of this actuator for the magnetic levitation stage.

Keywords

integration; magnetic actuators; magnetic flux; magnetic forces; magnetic levitation; numerical analysis; permanent magnets; surface charging; Lorentz force equation; cylindrical linear single-axis actuator; fine movement; force magnitude; magnetic field; magnetic flux density distribution; magnetic force components; magnetic levitation stage; numerical integration; permanent magnet; surface charge method; Actuators; Coils; Force; Magnetic field measurement; Magnetic flux; Magnetic levitation; Permanent magnets; Linear single-axis actuator; magnetic levitation stage; numerical integration; surface charge method;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2329456

Filename

6827238