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Article Dans Une Revue Progress In Electromagnetics Research B Année : 2009

Magnetic Couplings With Cylindrical and Plane Air Gaps: Influence of the Magnet Polarization Direction

Résumé

We present a synthesis of cylindrical magnetic couplings realized with tile permanent magnets whose polarizations can be radial, tangential or axial. The expressions of the torque transmitted between the two rotors of each coupling have been determined by using the coulombian approach. All the calculations have been performed without using any simplifying assumptions. Consequently, the expressions obtained are accurate and enable a fast comparison between all the structures presented in this paper. Strictly speaking, there are two great kinds of couplings generally used in engineering or medical applications. The first ones use a cylindrical air gap though the second ones use a plane air gap. The best configuration for obtaining the greatest torque turns out to be different between couplings using cylindrical or plane air gaps.
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Dates et versions

hal-00412358 , version 1 (01-09-2009)

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Romain Ravaud, Guy Lemarquand. Magnetic Couplings With Cylindrical and Plane Air Gaps: Influence of the Magnet Polarization Direction. Progress In Electromagnetics Research B, 2009, 16, pp.333-349. ⟨10.2528/PIERB09051903⟩. ⟨hal-00412358⟩
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