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Ideal Radial Permanent Magnet Coupling Torque Density Analysis

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This paper derives the closed form 3-D analytical torque equations for an ideal radial Halbach rotor magnetic coupling. The performance of the radial Halbach coupling is then compared with an… Click to show full abstract

This paper derives the closed form 3-D analytical torque equations for an ideal radial Halbach rotor magnetic coupling. The performance of the radial Halbach coupling is then compared with an ideal axial Halbach rotor coupling. The closed form equations and comparison gives insight into the upper torque density limits of Nd-Fe-B based magnetic devices.

Keywords: radial permanent; permanent magnet; torque density; magnet coupling; ideal radial

Journal Title: IEEE Transactions on Magnetics
Year Published: 2017

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