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PIER PIER B PIER C PIER M PIER Letters
2012-04-11
Analytical Field Calculation for Linear Tubular Magnetic Gears Using Equivalent Anisotropic Magnetic Permeability
By
Wenlong Li,

    Mr. Wenlong Li

    Department of Electrical and Electronic Engineering

    The University of Hong Kong

    China

    Homepage

Kwok-Tong Chau

    Prof. Kwok-Tong Chau

    EEE Department

    University of Hong Kong

    China

    Homepage

Progress In Electromagnetics Research, Vol. 127, 155-171, 2012
doi:10.2528/PIER12030301
Abstract
Linear magnetic gears take the definite merit of direct force amplification or speed reduction without using any bulky, inefficient rotary-to-linear mechanism. In this paper, an analytical calculation approach to determine the performance of linear tubular magnetic gears is proposed. The key is to adopt the concept of anisotropic magnetic permeability to handle the field-modulation region which consists of iron rings and airspaces in a zebra-striped manner. By solving the Laplace's and Poisson's equations in the linear tubular magnetic gear, the corresponding magnetic field distributions can be analytically determined. Finally, the analytical calculation results are compared with the numerical results obtained from the finite element method, hence verifying the validity of the proposed analytical field calculation.
Citation
Wenlong Li, and Kwok-Tong Chau, "Analytical Field Calculation for Linear Tubular Magnetic Gears Using Equivalent Anisotropic Magnetic Permeability," Progress In Electromagnetics Research, Vol. 127, 155-171, 2012.
doi:10.2528/PIER12030301
References

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