Affiliations: Department of Electrical Engineering, Chosun University, Gwangju, Korea
Correspondence:
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Corresponding author: Yong-Jae Kim, Department of Electrical Engineering, Chosun University, Gwangju, Korea. E-mail:kimyj21@chosun.ac.kr
Abstract: The mechanical gear, which is used in many fields of
modern industry, is used primarily in power transmitting mechanical devices.
Magnetic gears, which solve the physical contact problem of mechanical
gears, have drawn much attention. The magnetic gear has many advantages such
as no mechanical friction loss, very little noise and vibration, and no need
for lubricant. Because of these unique noncontact characteristics, the
magnetic gear has many advantages and allows for high efficiency operation.
However, magnetic gears are expensive because they contain rare-earth
permanent magnets, to generate magnetic fields and thereby transmit power by
using a magnetic field generated by permanent magnet. Therefore, this paper
applies the salient structure of the conventional magnetic gear and progress
optimization of both magnet angle and novel pole pieces using central
composite design, which is a response surface method. In addition,
experimental data required for predicting the relationships among design
variables are obtained using the finite element method based on 2-D
numerical analysis.
Keywords: Magnetic gear, central composite design, design of experiment, finite element analysis, response surface methodology, transmission torque, novel pole piece, regression analysis
