Paper Title:

3D Magnetic Field Modelling and Force Computation of a Permanent Magnet Linear Actuator

Periodical Solid State Phenomena (Volumes 152 - 153)
Main Theme Magnetism and Magnetic Materials
Edited by N. Perov
Pages 411-414
DOI 10.4028/www.scientific.net/SSP.152-153.411
Citation Ivan Yatchev et al., 2009, Solid State Phenomena, 152-153, 411
Online since April, 2009
Authors Ivan Yatchev, Krastyo Hinov, Vultchan Gueorgiev
Keywords Electromagnetic Force, Finite Element Model (FEM), Linear Actuator, Magnetic Field, Permanent Magnet
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Abstract

Three-dimensional finite element method has been used for modelling of the magnetic field and computation of the electromagnetic force of recently developed permanent magnet linear actuator. The actuator is subject to specific requirements – having four stable positions without supply and maintaining minimum static force during the whole working stroke. The actuator consists of several cores with coils placed on a common yoke and a moving permanent magnet. It is intended for needle driving in a knitting machine. Influence of different factors on the static force characteristic is estimated.