Finite-Element Analysis of the Magnetostatic Field of a Coaxial Magnetic Gear Device

Abstract:

This paper presents the magnetostatic field analysis of a coaxial magnetic gear device proposed by Atallah and Howe. The structural configuration and speed reduction ratio of this magnetic gear device are introduced. The 2-dimensional finite-element analysis (2-D FEA), conducted by applying commercial FEA software Ansoft/Maxwell, is performed to evaluate the magnetostatic field distribution, especially for the magnetic flux densities within the outer air-gap. Once the number of steel pole-pieces equals the sum of the pole-pair numbers of the high-speed rotor and the low-speed rotor, the coaxial magnetic gear device possesses higher magnetic flux densities, thereby generating greater transmitted torque.

• Periodical: Applied Mechanics and Materials (Volumes 764-765)
• Pages: 289-293
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.764-765.289
• Online since: May 2015
• Authors: Yi Chang Wu*, Han Ting Hsu
• Keywords: Finite Element Analysis (FEA), Magnetic Gear Device, Magnetostatic Field

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