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

Ivan Yatchev; Krastyo Hinov; Vultchan Gueorgiev

doi:10.4028/www.scientific.net/SSP.152-153.411

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3D Magnetic Field Modelling and Force Computation of a Permanent Magnet Linear Actuator
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HomeSolid State PhenomenaSolid State Phenomena Vols. 152-1533D Magnetic Field Modelling and Force Computation...

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

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.