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Multi-objective optimization of coaxial magnetic gears
International Journal of Applied Electromagnetics and Mechanics, 2018In this paper multi-objective optimization techniques are applied to the design of magnetic gears in order to maximize the performances and to obtain a competitive device. A parallelized stochastic algorithm is implemented and an analytical tool based on magnetic fields computation and losses estimation is used to compute the multi-objective function ...
Filippini, Mattia, Alotto, Piergiorgio
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Torque transmission characteristics of a coaxial magnetic gear
2016 19th International Symposium on Electrical Apparatus and Technologies (SIELA), 2016Study of the characteristics of a coaxial magnetic gear with permanent magnets is carried out in this paper. A 2D FEM model has been developed. The torque transmission of the magnetic gear is analyzed at steady-state and dynamic conditions. The research is carried out by Ansys Maxwell software.
Valentin Mateev +2 more
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IEEE Transactions on Energy Conversion, 2021
Magnetic gears, like mechanical gears, transform power between different speeds and torques; however, magnetic gears’ contactless nature provides inherent potential benefits over mechanical gears. A genetic algorithm was used to optimize magnetic gears at different temperatures across a range of gear ratios.
Matthew C. Gardner +3 more
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Magnetic gears, like mechanical gears, transform power between different speeds and torques; however, magnetic gears’ contactless nature provides inherent potential benefits over mechanical gears. A genetic algorithm was used to optimize magnetic gears at different temperatures across a range of gear ratios.
Matthew C. Gardner +3 more
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Torque and Power Density of Coaxial Magnetic Gears
2019 II International Conference on High Technology for Sustainable Development (HiTech), 2019In the present work, the recent positive trend in torque and power density of the coaxial magnetic gears is discussed. Timeline of magnetic gears development according to design topology and magnetic materials improvements is presented. Five generations of magnetic gears are recognized according to the torque density limitations.
Valentin Mateev +2 more
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Magnetic Materials for Coaxial Magnetic Gear Torque Density Enchainment
2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), 2020In this paper are analyzed different soft and hard magnetic materials for coaxial magnetic gears torque enhancement. Estimation of material properties impact over the magnetic gear input and output torques is implemented by finite element method model. The modelling is carried out by Ansys-Maxwell software.
Valentin Mateev +2 more
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Comparison of Reluctance and Surface Permanent Magnet Coaxial Magnetic Gears
2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020The noncontact operation of magnetic gears offers significant potential advantages over mechanical gears. Reluctance magnetic gears (RMGs) have been proposed as an alternative to surface permanent magnet gears (SPMGs) at high speeds. This paper explains the operating principles of RMGs and provides a thorough parametric comparison between RMGs and ...
Shima Hasanpour +3 more
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Vibration and Noise Analysis of a Coaxial Magnetic Gear
2019 II International Conference on High Technology for Sustainable Development (HiTech), 2019In the present work are estimated vibration and noise spectrums of a coaxial magnetic gear under no-load operational conditions. The developed approach is used to incorporate three different types of vibration analyzes: random vibration, response spectrum and harmonic response analyzes, based on modal analysis results. Finite element method modeling is
Valentin Mateev +2 more
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Design of Coaxial Magnetic Gear Mechanisms Using Taguchi Method
202020 3rd IEEE International Conference on Knowledge Innovation and Invention (ICKII), 2020Magnetic gear has various advantages related to its capability as contactless moving gear with no lubrication and its overload protection ability. The magnetic gears are commonly used as a transmission that demands high torque characteristics. This paper aims to perceive the effects of the design parameters of Coaxial Magnetic Gear (CMG) on the ...
Yi-Chang Wu +3 more
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Comparison of Radial Force at Modulating Pieces in Coaxial Magnetic Gear and Magnetic Geared Machine
IEEE Transactions on Magnetics, 2018Unlike the coaxial magnetic gear (CMG), the magnetic geared machine (MGM) has the ac armature winding on the inner part or the outer part. Besides, the PM excitation field of the CMG and the ac armature field of the MGM have different space harmonic components of magnetic field from one other.
Homin Shin, Junghwan Chang
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Comparison of Coaxial Magnetic Gears With and Without Magnetic Conducting Ring
IEEE Transactions on Applied Superconductivity, 2016This paper quantitatively compares four coaxial magnetic gears (CMGs) with and without magnetic conducting ring (MCR), which are artfully integrated into a permanent-magnet (PM) machine. In addition, different gear ratios are investigated for both topologies.
Wenxiang Zhao +4 more
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