Optimization of the Force Density for Medium-Stroke Reluctance Actuators

Author

Bao, J. ; Vrijsen, N.H. ; Gysen, B.L.J. ; Sprangers, R.L.J. ; Lomonova, E.A.

Author_Institution

Dept. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands

Volume

50

Issue

5

fYear

2014

fDate

Sept.-Oct. 2014

Firstpage

3194

Lastpage

3202

Abstract

This paper concerns the force density optimization for medium-stroke reluctance actuators applied in antivibration applications. The force density in a conventional E-core reluctance actuator is limited for medium strokes by the nonlinear force-displacement characteristic. In this paper, different tooth topologies are analyzed to maximize the force density along the stroke using the finite-element analysis. Teeth parameters are tuned in each topology to analyze the influences on the force density over a stroke of ±12.5 mm. An analytic thermal model is used to estimate the surface temperature and is verified with finite-element simulations. The optimal topology is validated by experiments on a prototype.

Keywords

electromagnetic actuators; finite element analysis; force control; optimisation; temperature control; vibration control; E-core reluctance actuator; analytic thermal model; antivibration applications; electromagnetic actuators; finite-element analysis; force density maximization; force density optimization; medium-stroke reluctance actuators; nonlinear force-displacement characteristic; surface temperature estimation; teeth parameter tuning; tooth topologies analysis; Actuators; Analytical models; Coils; Force; Stators; Thermal analysis; Topology; Magnetic forces; medium stroke; medium-stroke; reluctance actuator; tooth shape;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2304586

Filename

6731513