3-D Analytical Linear Force and Rotary Torque Analysis of Linear and Rotary Permanent Magnet Actuator

Author

Ping Jin ; Heyun Lin ; Shuhua Fang ; Yue Yuan ; Yujing Guo ; Zhou Jia

Author_Institution

Eng. Res. Center for Motion Control of Minist. of Educ., Southeast Univ., Nanjing, China

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

3989

Lastpage

3992

Abstract

This paper presents a 3-D analytical study of the linear electromagnetic force and rotary electromagnetic torque of a novel linear and rotary permanent magnet actuator (LRPMA). The 3-D analytical magnetic distribution of the LRPMA is established using the magnetic scalar potential and modified BESSEL functions in the cylindrical coordinate system. Linear electromagnetic force and rotary electromagnetic torque, respectively, are derived and verified using finite element method (FEM) for the characterization and optimization design of the LRPMA being examined by experiments in this paper.

Keywords

Bessel functions; finite element analysis; magnetic actuators; optimisation; permanent magnets; 3D analytical linear force analysis; 3D analytical magnetic distribution; FEM; LRPMA; cylindrical coordinate system; finite element method; linear and rotary permanent magnet actuator; linear electromagnetic force; magnetic scalar potential; modified Bessel functions; optimization design; rotary electromagnetic torque; Actuators; Electromagnetic forces; Finite element analysis; Magnetic analysis; Torque; Windings; Electromagnetic torque; linear and rotary permanent magnet actuator; magnetic scalar potential;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2238897

Filename

6559138