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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2013-06-14
Design Optimization of a Novel Magnetic Switchable Device Based on Halbach Array
By
Yong Chen,

    Dr. Yong Chen

    Nanjing University of Science and Technology

    China

    Homepage

Changming Wang,

    Dr. Changming Wang

    Nanjing University of Science and Technology

    China

    Homepage

Jiandong Bao

    Dr. Jiandong Bao

    Nanjing University of Science and Technology

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 31, 143-158, 2013
doi:10.2528/PIERM13041301 | Google Scholar

Abstract
The paper deals with the design and optimization of a novel magnetic switchable device based on Halbach array. The magnetic field in air gap is adjustable by rotating the center axis of adhesion mechanism so that the magnetic adhesion force is variable, and it is convenient for device to adsorb on and detach from the ferromagnetic workpiece or surface. The magnetic field model is established by Fourier series method, and the optimal dimensions of configuration are obtained by finite element parameter approximation method for best performing design. The magnetic force of novel optimal device is measured, and a good agreement between simulation and measurement is found. The results are compared to the traditional mechanism, and it is shown that the utilization ratio of magnets of novel optimal mechanism is 2.2 times larger than the H-type one with the same usage of magnets, while its consumption of soft iron is only 12.7% of the H-type one.
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Citation
Yong Chen, Changming Wang, and Jiandong Bao, "Design Optimization of a Novel Magnetic Switchable Device Based on Halbach Array," Progress In Electromagnetics Research M, Vol. 31, 143-158, 2013.
doi:10.2528/PIERM13041301
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