Thrust analysis and measurements of tubular linear actuator with cylindrical halbach array

Author

Jang, Seok-Myeong ; Choi, Jang-Young ; Cho, Han-Wook ; Lee, Sung-Ho

Author_Institution

Dept. of Electr. Eng., Chungnam Nat. Univ., Daejeon, South Korea

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

2028

Lastpage

2031

Abstract

This paper deals with design and analysis of the moving-magnet linear actuator with cylindrical Halbach array. On the basis of two-dimensional (2-D) finite-element analysis, this paper predicts thrust characteristics according to design parameters such as magnet height, air-gap length, coil thickness, and pole number. Then, we manufactured equipment made on an experimental basis of moving-magnet linear actuator with cylindrical Halbach array by employing parameters obtained from design results. Finally, this paper presents test results such as thrust measurements, which are given to confirm the finite-element analysis, according to load current and mover position.

Keywords

electric actuators; finite element analysis; linear machines; air-gap length; coil thickness; cylindrical Halbach array; finite-element analysis; magnet height; moving-magnet linear actuator; pole number; thrust analysis; tubular linear actuator; Air gaps; Coils; Current measurement; Finite element methods; Hydraulic actuators; Magnetic analysis; Manufacturing; Position measurement; Testing; Two dimensional displays; 2-D finite-element analysis; Cylindrical Halbach array; moving-magnet linear actuator; thrust measurements;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846266

Filename

1431026